Interesting work but I would like to know whether you would find the amount of new sets offered in toto has changed over the survey period. Is there an economy of scale at work? This seems to have two implications: first, the number of units for a particular set may have increased thereby affecting the price of all sets belonging to that class (but doubtful you could find exactly how many Death Star sets were produced in relation to, say, hogwarts castles); second, the popularity of certain set classes may affect what kinds of sets are available. Like with language, we are all confined to use the words we know. And so with Lego, set designers are confined to use what’s economical, unless, of course, the design calls for new styled pieces. These relations are difficult to grasp in statistical analyses, but would seem to play a role in price steering.
Like the original Warrior Class Optimus Prime, the figure features an undocumented feature: His axe can be stored on his vehicle mode trailer. Additional features include storing the axe onto either of his leg hooks, combining the launcher with either of the swords at their hilt, and storing the launcher underneath the vehicle. In a neat bit of engineering, he can fully transform with his swords attached.
One of the single rarest Lucky Draw Figures in existence, this "Custom Color" redeco of Super Optimus Prime was limited to only one in the world. It was the grand prize of a coloring contest held in Septemeber 2005's TV Magazine, in which entrants colored in lineart of Prime with the deco they wanted to see. The winning entry was in green, blue and gold, while ten runners-up received one of five gold or five silver Lucky Draw versions of Prime.
A redeco of the first Sports Label Convoy, this figure transforms into a white, navy, and grey sneaker. Promotional images for the figure depicted its robot mode as white and aqua-blue, but the finished product was visibly darker, produced in shades of off-white and dark teal. In either coloration, it sure as heck looks like it should be Ultra Magnus, but for whatever reason... it ain't.

In "Reunification", Optimus is seen building his new ultimate weapon, Omega Doom. He learns that Megatron has supposedly been killed by watching a broadcast from the Autobot reporter Rook. When Kup leads the Autobots Camshaft, Hound, and Warpath, in an attempt to assassinate Optimus Prime, the Autobot leader easily defeats the four rebels. Alpha Trion then attempts to kill Optimus, but Optimus uses Omega Doom against the ancient robot. Prime then sends Doom against the Decepticons.

Both Optimus Prime and Bumblebee raced down a street in an unknown desert while having an argument about Energon. He ordered Bumblebee to scan the surroundings to find the location where the Decepticons were hiding, and to be careful for possible scouts. When Bumblebee noted what the Decepticons were doing, Prime speculated that they might be planning to convert the energy into Energon, and ordered Bumblebee to create a diversion. While Bumblebee and Cyclonus fought, Prime made a surprise attack and took out Cyclonus with his Ion-axe, before turning his attention to Megatron. When both Decepticons fled, Prime told Bumblebee they'd done a good job (in front of a burning Gas station), and both Autobots got back on the move. Fight for Energon
The Heroes of Cybertron PVC figurine line is an adaptation by Hasbro of Takara's own Super Figure Collection line. The main differences between the two lines is that Hasbro cast Autobot and Decepticon figures in clear blue or clear red PVC respectively, then completely painted the figurines. This allowed the eyes to 'glow' when placed in front of the light source.
In the Escalation miniseries, Megatron engages Prime and, boosted by Ore-13, overcomes him. Believing their leader dead, the rest of the Autobots attempt to buy the newly arrived Hot Rod time to collect the clone. Prime, who had transferred his consciousness to a backup memory in his trailer command post, advised them to exploit Ore-13's weakness and assault Megatron all-out, catalyzing the Decepticon leader's Energon supply and crippling him.
The Autobots subsequently returned to Cybertron aboard a refueled and repaired Ark with the defeated Decepticons, taking the Decepticons on Cybertron unawares and quickly capturing control Cybertron. Peace reigned for a time until a series of natural disasters began, the source of which was determined to be the planet Moebius in a parallel universe. The Autobots assembled a team to travel to this alternate universe and stop the threat; Optimus Prime personally led the team, unwilling to put anyone in more danger than himself. Wheeljack, Hoist, Jazz, Prowl, and Silverstreak constituted the rest of the team; they dubbed themselves Spy Changers because they aimed to achieve their goal with stealth and diplomacy. The team modified their bodies to match the native cyborgs using data acquired from the Sky Spy and traveled to the 22nd Strata but were soon attacked by the local Guardians, who mistakenly presumed them to be Renegades. The Spy Changers were then rescued by the real Renegades, who presumed them to be potential allies and took them back to their flagship, the Rogue Star. Renegade leader Cy-Kill attempted to court the Spy Changers as allies, but Optimus saw through Cy-Kill's deception. Eventually, the Autobots formed a secret alliance with the Guardians as well as discovered the cause of Cybertron's troubles: Renegade bases on Moebius were draining the planet's energy. The planet's geometry had turned it into a crude Dimensional Interfacer, and Moebius was tapping into Cybertron to sustain itself. Hoist was able to end the crisis by triggering the bases' remote detonation sequence. Cy-Kill was furious, but in the ensuing battle, the Autobot-Guardian alliance triumphed over the Renegades. Optimus Prime and Leader-1 shook hands as a symbol of the transdimensional friendship, and the Autobots returned to their home reality, secure in the knowledge that they had allies in places as distant as alternate realities. Ask Vector Prime, 2015/09/30
Two custom-made pieces (presented in robot and vehicle mode) by the Hasbro Transformers team as the grand prize for G4TV and Jumpcut's contest for fans to remix selected Transformers clips. Won by TFW2005.com member James Zahn, this one of a kind (well, two of a kind) piece is a almost fully vacuum-metallized Leader class Optimus Prime in red, silver and blue (based heavily upon Generation One Optimus Prime), presented with a custom display base with an embossed silver Autobot insignia and a perspex display case.
This line features robot versions of various Star Wars characters. Confirmed figures are Darth Vader, Luke Skywalker, Boba Fett, Commander Cody and Jango Fett. Darth Vader turns into his custom Tie Fighter while Luke Skywalker turns into an X-wing. Jango Fett and Boba Fett become Slave I, and Commander Cody turns into a Turbo Tank. There is combiner of Millennium Falcon of two characters, Han Solo and Chewbacca and Primus/Unicron-like Death Star that transforms into a giant Darth Vader. There are more Star Wars characters into Transformers like General Grievous and Obi-Wan Kenobi. This line was later revived and merged into the Transformers: Crossovers toy line, many more Transformers included characters from Star Wars: The Clone Wars like Ahsoka Tano who transforms into her Jedi starfighter, and Captain Rex who transforms into an AT-TE.[3]
Part of the first wave of Mini-Con Battle Pack figures, this Optimus Prime figure is a new mold, about the size of a Scout Class figure (In Optimus' case, the size of Cyberverse Commander figure), and scaled with Legion Class figures. Its transformation scheme also takes some cues from the Legion Class figure. Battle Pack Optimus Prime also features a transparent orange battle axe & armor pieces, although the chest armor/flip-up mask piece is needed to be assembled first. The included pieces can be combined into a clawed battle axe, or attached to his body to form his armor (although the flip-up mask can restrict his head articulation). Optimus Prime can totally wield the axe dual-handed. As an undocumented feature, the axe can be stored on his truck mode with the tab featured on Prime's right shoulder.
Bumblebee, being the popular character he is, was one of the first five characters inducted into the Hall in 2010, during a ceremony at BotCon; the convention for all things Transformers. He was joined, not surprisingly, by other super-popular transformers: Optimus Prime, Megatron, Starscream, and the Dinobots. Humans enshrined in the Transformers Hall of Fame over the last few years include everyone from director Michael Bay to Peter Cullen (the iconic voice of Optimus).
In the Japanese exclusive Transformers: The Headmasters storyline (which replaced the "Rebirth" finale in Japanese continuity), Hot Rod appeared as part of Optimus Prime's inner circle. When Galvatron and his Headmaster warriors launched a devastating attack on Cybertron, Vector Sigma was damaged, and Hot Rod was sent to Earth to retrieve the Matrix. Recovering it, he returned it to Prime, only to be surprised when the ghost of Alpha Trion once again reformatted him into Rodimus Prime to help Optimus. After Prime's second death, Rodimus once again took command of the Autobots. However, when Scorponok destroyed Vector Sigma, Rodimus decided to leave the war, and left Fortress Maximus in command of the Autobots.
Following a battle which left him grievously wounded, Optimus Prime's entire structural integrity and circuitry processors were reprogrammed into a sleeker, stronger, combat-ready configuration. With a new giant laser-targeting rocket launcher, ripple-fire missile blaster and armor-piercing discs, Optimus was ready to immobilize Megatron once and for all.
A redeco of the Dark of the Moon Deluxe Class toy, this Optimus Prime has large portions of his body, mostly his truck parts, vacuum metallized silver, and his light-piped eyes were neutered by blue paint. He comes with a redeco of Generation 1 Rampage's sword, which can be wield by his 5mm-compatible hands (Although not shown in the instructions). As his body, legs, and front truck kibble were chromed, care must be taken while transforming, especially with the shoulder kibble & the bottom leg's posts (This can be amended if you slightly widen the holes with 3mm hand drills). As with the original Dark of the Moon Deluxe Class figure, the instructions did not mention about forming the sleeper part until step 10, the pinky finger prevented the sword to peg down through his hands, and of course: his truck mode can attach with the Armored Weapons Platform included in the Chronicle or the Movie Trilogy Series figure. This figure has slightly loose shoulder joints.
Battle Blades Optimus Prime is a brand new sculpt that attempts to replicate his Leader Class design. He is much more movie accurate than the previous Voyager incarnations. He features two energon swords made of soft plastic, similar to his Leader Class incarnation, albeit not spring-loaded. They can be detached from the mushroom joints they're on, although doing this excessively may cause them to warp.
It should also be mentioned that a few years back, I think around 2009 roughly, TLG started using smaller boxes for the same size sets. It was part of a move to not only save money, but also become greener as a company. Because the sets now take up less physical space on the shelf, and boxes with the same number of pieces appear smaller than sets from previous years, it could also contribute to the perception that you are getting less for your money today. In reality they are one and the same product.
Hot Rod then fought in the battle of Autobot City and saved the city for if he had not attacked Megatron, he would have destroyed it. Due to his attempted intervention in the epic battle between the Autobot leader, Optimus Prime and the Decepticon leader, Megatron, Prime was lethally injured. Before he died, the Matrix got passed on to the Autobot Ultra Magnus, whom he referred to as "old friend", despite protestations.

When Robotmasters G1 Convoy was turned into a Lucky Draw figure, the color scheme into which he was redecoed was chosen through a children's coloring contest held in the pages of the December 2004 issue of TV Magazine. The winning entry was a... startling mixture of blue, orange and two shades of green, earning the toy the fan-appointed nickname of "Crayola Convoy". As with all Lucky Draws, it is extremely rare, with only ten units produced.
In the aftermath, Victorion believed trying to find the Requiem Blaster was a fool's errand, and that they should have been preparing Optimus Prime's funeral instead. The Swamp Megatron often thought of Optimus, noting the similarities between him and Optimus Primal Primal and wondering what his old rival would think of his heroic exploits. Consequences Ultimately, thanks to his connection to the Matrix and the Primes, Optimus's spark was freed from the Well and revived after Megatronus's defeat, to the joy of his companions. Mourning the sacrifice of Megatron, whom he considered a brother, he commended Optimal Optimus for being a fine choice as the new Matrix-bearer, and began teaching him the ways of Cybertron, promising to support him in his new leadership role. Saga's End
This is a new line which features robot versions of various Marvel Comics superheroes (and later more of the Star Wars Transformers figures once it merged with this line). Confirmed figures are Iron Man, Spider-Man, Wolverine, Venom and Hulk. Hulk turns into a tank while Iron Man turns into a jet. Spider-Man becomes a helicopter, Wolverine turns into a 4WD, Venom turns into a turbocharged retro car. They are not to be confused with the Marvel Megamorphs toy line, which also featured transformable mecha piloted by the superheroes. Eventually, the Star Wars Transformers figure joined the line with reissues of previous figures, as well as all new molds.
Part of the fifth wave of Kabaya's revival of the Transformers Gum series, this snap-on transforming model kit of War for Cybertron Optimus Prime is sculpted from red, light blue, and gray plastics, and uses stickers for detail. He comes with a blue non-transforming version of his hand-held blaster rifle, which mounts at the rear in vehicle mode. He comes packed with a model kit of Tigerbreast, and a stick of gum.

In a break from tradition, Energon Optimus Prime's large mode resembled a configuration similar to Voltron or to the Super Sentai action figures. This design was unpopular with many fans due to design issues with the toy. The small robot's body was large in proportion to his arms and legs which made the figure appear fat, earning it the nickname "Fatimus Prime" or "Obese-imus Prime". The 4 vehicles that combined with the robot were small, lacking the intricate detail that made other toys in the line popular. Fans were also angered by early releases of this toy in which the head was molded with a mouth rather than the traditional face plate design. Later releases of the toy eliminated the visible mouth feature.
The main build of the set is a massive vehicle based on Optimus's truck cab, capable of seating a single Kreon in the driver's seat. Pushing the trailer-hitch on the back end towards the cab opens up the front grill, revealing a huge spring-loaded rocket launcher with rubber-tipped projectile. The cab can also stow the included stasis pod ussed to lock away the baddies.
The final waves of this line, released in early 2014, really pushed towards younger kids, with incredibly simplified designs based on the characters' Cyberverse releases, which actually allowed the toys to be larger than most others in their size class. Unfortunately, as they were tail-enders, their US releases were nearly nonexistant: only the Voyagers made it out at US retail, and only through discount chains like Ross and TJ Maxx. The rest ended up released only overseas (not even Canada got them!).
The success of Beast Wars and the change in storyline resulted in its second phase: Beast Machines. Like Beast Wars, the name Transformers was used only as a secondary title. While still a success, the storyline and direction borne by Beast Machines was questioned and criticized by the most ardent fans who knew the previous history of the Transformers. Also, there was a clamor for a return to the original idea of the Transformers, that of their being protean robots with nearly humanlike artificial intelligences who transformed into vehicles or devices.
Towering at only barely over two inches, this was actually not just the smallest movie-verse Optimus but even the smallest transformable figure of Optimus Prime for a while - ironically enough, being even slightly tinier than the Smallest Transforming Transformers Optimus Prime - that is, until he was later "out-tinied" by two other cute super deformed versions.

A slight redeco of Takara's Deluxe-size Optimus Prime was released as part of a special set commemorating both the 20th anniversary of Transformers and the 30th anniversary of its progenitor, Microman. Coming with an exclusive metallic redeco of Takara's Kicker, which was based on the Microman body, this Prime featured a chromed grill where the original had painted plastic, and supposedly slightly shinier plastics. Very slightly.

1· To calculate the average price per piece in a year, I took the price per piece of each set made that year, multiplied it by the number of pieces in the set and then averaged all the weighted prices. I used a weighted average because when we are looking at the price per piece we are essentially saying we could buy x number of pieces for y dollars. Larger sets tend to have a lower price per piece so in effect you could get more pieces at that lower price that year. Note: this was done using US retail price data from Brickset.
In the alternate universe of the 2003–2004 toyline and series, Transformers: Energon, Rodimus (lacking the "Prime" suffix in English, but still called Rodimus Convoy in Japan) was a great leader on Cybertron ages in the past and was viewed as a hero by many, including similar character Hot Shot. Desiring to escape the war that had consumed the planet, Rodimus departed Cybertron with a contingent of like-minded troops, most of whom settled on an alien planetoid and became the energon-mining Omnicons. Still, Rodimus continued on his journey with Prowl and Landmine, carrying the "flag of peace" from world to world.
Released as part of the Allspark Power refresh of the movie line, First Strike Optimus Prime is an extensive redeco of Voyager class Optimus Prime in a colour scheme based upon Generation 1 and Classics Optimus Prime. The included toy bio describes this coloring as Prime paying tribute to the markings he wore as a young soldier when the war began. Due to the transformation scheme, this figure actually ends up being less like its G1 counterpart in robot mode, a sacrifice made for the slavish redeco of the vehicle mode. You can't have your cake and eat it too, folks.
The conclusion to the storyline was forestalled when Hasbro retracted 3H Enterprise's license, but an explanation can be found in issue 8 of the Transformers Collectors Club magazine, Cybertron/Robots in Disguise. In this issue, Prime tells the tale of how Unicron's forces were defeated in the last battle by Optimus Primal's forces and Unicron disappeared into the black hole opened in Transformers: Energon. Combined as Omega Prime, they could not escape fast enough, and were sucked into another dimension.
Available only via mail-order through Dengeki Hobby magazine, this black and gray redeco of Optimus is one of four "Black Body" promotional Robot Masters toys made available through different outlets simultaneously. He came with his normal accessories (it is worth noting his axe was solid silver), plus a chromed-gold clear-red-plastic version of Psycho-Orb's "Calamity Defenser" solitarium shield.
A redeco of Legends Optimus Prime replacing his red plastic with more blue and silver, but sprucing things up a bit with red flame paint operations. Defender Optimus Prime (ディフェンダーオプティマスプライム) was only available in Japan as part of their Transformers Animated promotion in March 2010. It was given away for free to customers who purchased Animated merchandise at Edion, Bic Camera and Yodobashi Camera stores.
Based on his appearance in War for Cybertron, Generations Optimus Prime transforms from a red, blue, and silver robot into an "armored truck mode." He comes with a hand-held rifle that is held via either of its two 5mm posts, and can fold up to store in either mode. He features additional 5mm ports on his forearms, roof, and front-wheel panels. Optimus has a stylized sculpted Autobot insignia on his back, as seen in the game, but it is obscured by kibble.
The TakaraTomy release of Optimus Prime has considerable differences from the Hasbro release. His blue and red plastics are darker and metallic, his translucent blue plastic is darker, and a few of his paint operations have been omitted and replaced with customer-applied foil stickers, such as his shins, feet, headlamps, and insignias. His legs, outer forearms and truck mode "sleeper cabin" side panels have been retooled to include 5mm post-holes as part of the line-wide "Arms Micron" gimmick. As such, he does not come with the Hasbro version's weapons, but instead an Arms Micron partner named O.P. who transforms into a weapon resembling Optimus's in-show blaster cannon. This version of the mold was also used to make Prime Nemesis Prime.
Brian Colin, Peter Smyth, Mark Buffington, Josh H., Propelstalz, Mary Crocker, Wayne Moulton Jr, Mitch Gross, Jim Valko, Andrew Brown, Lucy Ravitch, Nicholas Duresky, Heather Hofshi, John Kemp, Thorsten Karge, Natasha Dzurny, Keith Ives, Benjamin Chan, Neal Bhatnagar, Justin Farr, Regan Lee, Elaine, Nate Fugal, Stephanie Tennison, Jon Rasmussen, Ryan Pulis, Owen Duffy, Colman Reilly, Anthony, Mark Richman, Alexis Ohanian, Steve, Greg “TVsEgon” Skinner, Andy Saavedra, Daniel, Willie Raymond Taylor III, Chad Ingham, Irene Christian, Clinton Richmond, Jamey Stegmaier, James Allenspach, John Howell, Leif Terry, Tiago Pereira, Nathan Heath, Grinidon, Roman, Berserker Hew, Clark Stacey, Ben Harkins, Kayvaan Ghassemieh, Travis B., Justin Myers, Magna Nordgard, Jim Griffin, Jeff, David Smith, Matthew Titelbaum, Dennis Hitzeman, Daniel Lieske, Michael Jantze, Ruddy, Tom Damico, Kelson, Michelangelo Grigni

The box seems to have been created rather hastily from the Japanese original. It is roughly identical to the Tomy release, but with the Japanese text edited out... mostly. Random Japanese text remains floating in space on the top of the back panel and underneath the "Jetwing Optimus Prime" name on the front. Curiously, the left flap has been rewritten to eliminate mention of NEST and the jetpack's ability to detach, while the right flap has been (badly) edited to remove all mentions of MechTech.
Some time later, as the war raged between Autobots and Decepticons on Earth, Optimus had requested the Aerialbots as reinforcements from Cybertron. Though they nearly defected to the Decepticons, Optimus was able to secure the Aerialbots as allies. Later, when a power plant had to be evacuated of its human workers due to the fear of landslides, Optimus posted Denfensor at the location to secure its protection. Optimus then drove off to check up on the rest of his troops who were aiding in the area’s evacuation. Though he passed a military convoy heading towards a plant, he thought nothing of it, unaware that they were the newly created Combaticons in disguise. Optimus then reached the Ark, and from there opened communications with the Aerialbots. Optimus had someone come into the know that the Decepticons were moving in towards the plant. He watched from afar as Defensor and Superion fought Menasor and Bruticus, wary to send more Autobots into the fray while these titans wreaked havoc onto the battlefield. Optimus allowed himself a smile when the Aerialbots and the Protectobots proved themselves superior teams to the Decepticons’, though at the back of his mind, he was wary. After all, Megatron himself had chosen not to add his considerably weight to the battle... The Special Teams
In "Mission Accomplished", Optimus is pressured by Sentinel to tell Ultra Magnus that his story about the Decepticons is untrue, but he refuses. Meanwhile, the on-board computer plots a train infused with a shard of the Allspark. When Ultra Magnus and Jazz set off there, Optimus suspects that the Decepticons are luring them into an ambush and rushes to their help, though Sentinel Prime tries to detain him. At first, Ultra Magnus doesn't believe him, but a short time later, Optimus is proven right as Starscream falls from the sky after being blasted by Megatron, much to Sentinel Prime's astonishment and fright. Starscream turns out to be alive, inflicting injury on Ultra Magnus. Optimus takes the affair into his own hands momentarily and, with Sentinel's aid, manages to apprehend the Decepticon. While Sentinel Prime deflects Starscream's shots with his power-shield, Optimus succeeds in taking Starscream by surprise and handcuffing him. When the shackled Starscream is delivered to the Elite Guard spaceship, Ultra Magnus admits Optimus Prime was right and allows him to stay on Earth in order to seek out the other fragments of the Allspark.
Not long after his resurrection, Optimus was alerted by Monitorus to an attack on Tau-Ursa. Optimus's impending speech was interrupted by a Decepticon attack led by Sixshot. Prime soon discovered that the attack was a diversion, while Galvatron tried out his Nullification Cannon on Cybertron's Energon supplies. Optimus rushed to the Energon plant, but, after clouting Slugslinger so hard that the Decepticon was left dangling over a precipice, Prime's morals forced him to rescue the Decepticon instead of stopping Galvatron from getting away.
The bio for the Botcon 2015 version of Megatron reveals that he comes from an alternate reality where Megatron achieved victory during events similar to Dark of the Moon and killed both Optimus and Sentinel Prime. However, Rodimus Prime then arose to challenge him, facing him in a battle that Megatron ultimately chose to flee, resulting in him ending up in the Axiom Nexus.

In the alternate universe of the 2003–2004 toyline and series, Transformers: Energon, Rodimus (lacking the "Prime" suffix in English, but still called Rodimus Convoy in Japan) was a great leader on Cybertron ages in the past and was viewed as a hero by many, including similar character Hot Shot. Desiring to escape the war that had consumed the planet, Rodimus departed Cybertron with a contingent of like-minded troops, most of whom settled on an alien planetoid and became the energon-mining Omnicons. Still, Rodimus continued on his journey with Prowl and Landmine, carrying the "flag of peace" from world to world.
The Premium Series Optimus Prime is both a retool and a redeco of the Leader Class Optimus Prime toy. The major selling point is a more movie-accurate headsculpt with longer ears and detailing based on the final CG head design, and a flip-out energy sword to replace the ion blaster that was included with previous versions of the toy. A smaller laser is seen when it flips out with the sword. This energy sword is detachable and attaches where the Ion Blaster did, compatible with non-premium Optimus Prime leader class based releases. Because his ears are much longer, the truck roof panel that hides his head now has two holes cut into so the head can fit inside the cabin.
The Premium Series Optimus Prime is both a retool and a redeco of the Leader Class Optimus Prime toy. The major selling point is a more movie-accurate head sculpt with longer ears and detailing based on the final CG head design, and a flip-out energy sword to replace the ion blaster that was included with previous versions of the toy. This energy sword is detachable and attaches where the Ion Blaster did, compatible with non-premium Optimus Prime Leader-class-based releases. Because his ears are much longer, the truck roof panel that hides his head now has two holes cut into so the head can fit inside the cabin.
This straight reissue of the original Optimus Prime figure was released in Hasbro's European markets in the early 1990s, at the same time as many other Generation 1 figures were being re-released as "Classics". Oddly, although he shares their golden packaging, Prime is not actually identified as a "Classics" figure anywhere on his box, but is generally considered to be part of the sub-line for simplicity's sake.
×