Outstanding work here. After reading a number of complaints about how the price has ‘increased’ over the years, it’s great to see this analytical approach. One additional hypothesis I have is related to the increase in the number of sets released each year, which would appear to be supported by your data. More sets to buy to be ‘complete’ makes for more money out of pocket.

The toy itself is a mix of different versions. The cab has the safety modifications, including the shortened smokestacks and longer missiles (and thicker rifle), but also has the modified hitch of the 2011 Chronicle DOTM two pack. Meanwhile, the trailer is the lighter grey version from the 2008 Universe release. This version also seems to suffer from mold deterioration.
In 2004 the LEGO group was in trouble. They were losing money and losing market share to other toys and entertainment products4.  In order to address some fundamental issues in their business, they needed to cut costs. Leading up to this crisis, LEGO bricks had been adding new designs and colors without consideration for the cost to the business. LEGO went through a large reorganization and cut the production of unique elements in half, the variety of colors in half, and the number of suppliers by 80%. This, in addition to an increase in licensed sets and an expansion into video games, saved the LEGO Company.
There is also a smaller "Legends of Cybertron" Micro sized version of this Optimus Prime, without a trailer, and a Burger King Kid's Meal toy, again without a trailer. There is also a rotating sucker holder version of Cybertron Optimus Prime. Later releases of the Leader class and Micro class Optimus Prime were repainted in darker colors, supposedly representing Optimus Prime after the television story. This toy is called Galaxy Force Optimus Prime. A special metallic painted version of this toy was included with Megalo COnvoy in Japan.
Having been removed from toy store shelves after 1985, Optimus Prime was made available as a mail-away toy in the "Digital Doom on the Highway to Destruction" offer in the US in 1986 to coincide with the Transformers movie premiering that year. He cost $21.50 and 5 Robot Points. He was also offered in 'The Autobots Have A Special Mission For...' mail-away pamphlet and came with a special "Movie Edition Certificate" and a round sticker that read " Movie . Edition . Transformer" with the Autobot symbol in the middle. (This item is considered rare.)

Optimus awakened to the sound of Ratchet's voice. Taking in his surroundings, he noted that he was now in an organic forest, surrounded by unfamiliar Cybertronians. It soon dawned on him that he had been transported to the dimension where Megatron had intended to begin his conquest: the OG World. The 'bots surrounding him were the local counterparts to his own Autobots, including his own doppelgänger! The locals informed him that they had found him thanks to the help of his "companion," a small robotic girl. Before Optimus could puzzle out who this humanoid was, the group came under attack by the local Megatron. Though badly injured, "Cloud Optimus Prime" had the strength to fight alongside "G1 Optimus Prime" against the Decepticons, and protect the girl that had brought the Autobots to him. During the fight, blasts from both Primes' rifles collided with a blast from Megatron's fusion cannon, knocking all of the combatants down. Cloud Optimus Prime ensured that the girl was safe before before his attention was drawn to the horizon by a familiar voice. It was "Cloud Megatron," who had also survived his inter-dimensional trip, and had come to continue his fight against his nemesis. Leap

Smallest Transforming Transformers Convoy is the smallest fully transforming Optimus Prime toy yet. He features an accurate transformation sequence based on the original full-sized toy, but understandably has no detachable hands, and has little articulation. His sculpt is based upon his cartoon appearances. He comes with a tiny version of his laser rifle.

Back in the 60s, Hasbro was commissioned to play down the negative stigma surrounding US soldiers fighting in the Vietnam War. The result was four, 12-inch tall dress-up dolls featuring realistic camouflage fatigues and weapons of the time. The figurines represented the Army, Navy, Air Force and Marines. There was no real storyline at the time which limited the allure of the toys.


The DOTM packaging release of this 2-pack features an altered paint application on Optimus Prime's ion blaster/barrage cannon. On the original ROTF packaging release, the slide-out barrel on Prime's blaster is painted silver with a black paint spray app to simulate usage of the weapon, and the exposed inside wall of the gas tank at the top of the blaster is left as unpainted grey plastic (exactly like the blaster on the original single-boxed ROTF Buster Optimus Prime). After receiving numerous reports from customers that the silver paint on the slide-out barrel was easily scraped off by merely transforming it from gas tank to blaster, Takara-Tomy briefly stated in an interview that they had addressed the issue for the Dark of the Moon packaged version by swapping the placement of the silver paint application. Thus, the Dark of the Moon packaged version now features the slide-out barrel on Prime's blaster as unpainted grey plastic with an unchanged black paint spray app to simulate usage of the weapon, and the exposed inside wall of the gas tank at the top of the blaster is now painted silver.
It may be that the price of an individual brick has gone down over time, but what does it matter if the size of the bricks has decreased overtime? Sure, the average number of pieces in a set has increased, but how many of those pieces are tiny details? To answer this question, I compiled all the weight data on brickset.com and compared the sets by their price per gram in a similar fashion to how I compared them by price of piece. Below is the chart of my results (prices are in US dollars).

This toy's design has directly and indirectly influenced numerous others over the years, including many future versions of Generation One Optimus Prime himself as well as new interpretations of the character for Armada, the live-action movie, and Transformers Animated. Redecos of those toys have in turn spread the toy's iconic look to several other characters and many of their subsequent toys: Ultra Magnus, Scourge, and the various Nemesis Primes. Additionally, a toy that was originally intended to be the original Optimus Prime was eventually retconned to be the new character Optimus Primal, bringing Prime's appearance over to that character (and eventually Primal Prime as well.) In Japan, this began a tradition of Beast Era Convoys emulating Prime's look, spawning still more toys that trace part of their lineage back to this one.

While the other Autobots searched for the Matrix on Earth, Optimus Prime searched for Vector Sigma, guided through the dangers of the planet's catacombs by the spirit of Alpha Trion. Prime eventually arrived at the computer, only to find his way barred by Cyclonus and Scourge. At that moment, Hot Rod arrived with the Matrix, the same with which Alpha Trion merged, re-energizing it. The Matrix transformed Hot Rod back into Rodimus Prime and, for the first time, the two Primes fought side-by-side and defeated Galvatron.


Hot Rod has a youthful attitude, and serves as an older brother figure to Daniel Witwicky, son of Autobot ally Spike Witwicky. He has a sort of mentor-student relationship with the veteran Autobot Kup. He was also good friends with Springer and Arcee. Later in life, he temporarily bears the Autobot Matrix of Leadership and becomes Rodimus Prime (Rodimus Convoy in Japan), and new leader of the Autobots.
This series introduced the dangerous Predacon faction, robotic dragons and mythical creatures that posed a threat to Autobot and Decepticon alike. In response, the 'Bots and 'Cons don new armor (the Autobots in spiky, over-weaponized armor reminiscent of Mad Max, while the Decepticons take on more beastly traits) and are armed with new gimmick-laden launching/spinning weapons. On-package bios were reduced in length to just a sentence or two, and the instruction sheets instead feature facts about one of the figure's main weapons, as well as a chapter of the Tales of the Beast Hunters prose story.
Generation 1 Optimus Prime has appeared in numerous video games since the introduction of the Transformers series. He makes a cameo in the 1999 Beast Wars Transmetals video game for Nintendo 64, where he is killed by Megatron at the end of the campaign, showing what would have happened in the Beast Wars series with a Predacon victory. Prime is also one of the playable characters in the 2003 Japan-only Transformers game for the PlayStation 2 and the 2010 Transformers: War for Cybertron. Optimus Prime is also playable in the Hasbro Net Jet Transformers fighting game Transformers Battle Universe. Three versions of Optimus Prime are playable characters, including the first generation incarnation, his incarnations from the 2007 live-action film, and the incarnation from Transformers Animated. In this game, Optimus Primal is also a playable character. He is a regular character in the Nintendo GameCube and PlayStation 2 2003 fighting game DreamMix TV World Fighters. He appeared as a boss in a simple Flash-based video game on the Hasbro web site.[17]
Optimus dueled Megatron atop of an overpass in a human city. Though he managed to knock Megatron's cannon loose early in the scuffle, Megatron managed to turn the tables on the Autobot leader, reattach his primary weapon, and blast his old foe. When Megatron moved in for the kill, Optimus got his second wind, and knocked Megatron clear off the overpass. They were always real to me.
The live-action Transformers movie was slated to premiere in the U.S. on July 3, 2007, and was a joint collaboration among DreamWorks SKG, Paramount Pictures and Hasbro, Inc. Paramount Pictures was slated to release the film in the United States, as it had by now made DreamWorks Pictures one of its wholly owned subsidiaries, and was also to be responsible for the international release of the film through United International Pictures, its joint venture with Universal Studios. The feature was directed by Michael Bay from a screenplay written by Alex Kurtzman and Roberto Orci. It was a new story, set apart from the previous incarnations of the cartoon(s) and comic(s). A new origin and characters were introduced. Steven Spielberg, who with Jeffrey Katzenberg and David Geffen had established DreamWorks SKG, was the main executive producer of the film, with Lorenzo di Bonaventura, Tom DeSanto and Don Murphy serving as co-executive producers. In practice, this meant that they were the primary financial sponsors of the film.
Part of the first wave of Prime: Robots in Disguise Weaponizer Class toys, Optimus Prime is a large toy, similar in size to Leader Class figures from previous Transformers toylines. He features a simpler transformation and design compared to previous Leader-sized figures, with him having fake chest windows (again) and a simplified, hollow truck rear where his feet, arms, and fake chest windows are plainly visible. He comes with a blaster which can mount onto his hands, shoulder-pads, and the sides of his legs/truck rear.
Hot Rod would make his first IDW Publishing appearance in a Spotlight issue focusing on him. In this, he was shown to be newly promoted to command of a group of Autobots including Gizmo, Backbeat and Dealer, who had been sent to secure the Magnificence, a device of some sort that could predict the future. Getting past the guardians, Hot Rod was swapping it with a fake to prevent the Decepticons from getting their hands on it when a seeming Decepticon ambush wiped out his squad. Determined to rescue the only survivor, Dealer, Hot Rod staged a daring solo rescue mission that managed to rescue Dealer - unaware that he was really Doubledealer, a Decepticon spy sent by Banzaitron to retrieve the Magnificence and now out to find where Hot Rod had stashed it.[10]
Realizing that the planet is dying, Optimus orders a mass evacuation of all Autobot cities, but many transport ships are destroyed by the Decepticon satellite Trypticon, under orders from Megatron that no one shall leave the planet. He orders the Aerialbots Jetfire, Silverbolt and Air Raid to fly and destroy Trypticon. The aerial trio manages to destroy Trypticon's jet pack and send the Decepticon behemoth crashing into Cybertron, where Optimus Prime and the Autobots band together to narrowly defeat him, sending him plunging into a pool of raw energon. Optimus and the remaining Autobots volunteer to stay and defend Cybertron from Megatron for as long as possible while the rest evacuate the planet. He commissions a massive vessel known as the Ark to transport the remaining Autobots into space when the time comes.
Although Rodimus plays the part of the brash youth, he is actually very intelligent, and has no loyalty to Optimus Prime; only his own personal gain. According to his biography, Rodimus used to be leader of the Wreckers, a mercenary group hired by Optimus Prime; but after the deaths of the other members, he joined the Autobot Seekers under the command of Goldbug.
ROBOTKINGDOM.COM Newsletter #1462 Hi, Here is a quick update from www.robotkingdom.com.  #1 Hot Items! Flame Toys : Transformers Star Saber. Preorder. Available in May 2019. US359.90 http://www.robotkingdom.com/ftstarsaber.html Flame Toys [Furai Model] - Bumble Bee. Preorder. Available in May 2019. US44.90 http://www.robotkingdom.com/4897054512308.html Takara Transformers Masterpiece MP-34 Masterpiece - Read More
The live-action Transformers movie was slated to premiere in the U.S. on July 3, 2007, and was a joint collaboration among DreamWorks SKG, Paramount Pictures and Hasbro, Inc. Paramount Pictures was slated to release the film in the United States, as it had by now made DreamWorks Pictures one of its wholly owned subsidiaries, and was also to be responsible for the international release of the film through United International Pictures, its joint venture with Universal Studios. The feature was directed by Michael Bay from a screenplay written by Alex Kurtzman and Roberto Orci. It was a new story, set apart from the previous incarnations of the cartoon(s) and comic(s). A new origin and characters were introduced. Steven Spielberg, who with Jeffrey Katzenberg and David Geffen had established DreamWorks SKG, was the main executive producer of the film, with Lorenzo di Bonaventura, Tom DeSanto and Don Murphy serving as co-executive producers. In practice, this meant that they were the primary financial sponsors of the film.
Micromasters teams have teamwork ratings instead of ranks. Unlike the other ratings, teamwork seems to be split along faction lines, with Autobots typically holding higher teamwork ratings than Decepticons. A second unique spec value, Cooperation, replaced the Firepower rating used on individuals' cards. The traditional order (as above) was also abandoned for the Micromaster team specifications.

A Mega Super Collection Figure of Prime in his "normal mode" was released a few months after the first figure. He came with a translucent blue Star Saber, and a much larger version of the Convoy Gun accessory, creating a sense of comparative scale, even though he's the same height as the Super Mode figure. Like the Super Mode figure, only his right fist has a peg-hole in it, so he can't hold both weapons at once.

When I was a child in the 1960s, I bought most of my own Lego, using money from paper routes I had from the ages of 7-16. But the items I bought we not ‘kits’. They were small boxes of standard bricks. Each box contained only a single shape and colour, but you could find most of the basic shapes 1×1 or 1×2 or 1×4 or 1×8, 2×2 or 2×3 or 2×4, bevels, doors or windows, if you found the right box. The boxes were only 50 cents, and had an average of 12 bricks per box. That works out out to about 4-5 cents per brick. The kits were expensive, but buying the standard boxes was a lot cheaper, and that is what most people did back then. With my paper route, at the age of 7 I could buy 100 pieces per week using my own money. Name any 7 year old that afford to do that now!


If Optimus ordered his troops to come to the humans’ aid, they found themselves taking part in a struggle in futility, as the entire town was near-weightless, meaning they couldn’t put the humans anywhere where they wouldn’t float away once more. Then, the Autobots heard Decepticons approaching. Helpless in their current position, the Autobots were quickly eradicated by the Decepticons.
As yet another in an increasingly large number of reissues of the original Generation 1 Optimus Prime toy, this entry in the Japanese-exclusive The Transformers Collection line of reissues added a few extra goodies to spice things up. Chiefly, the figure was armed with a new energon-axe, based on the weapon used by Prime in the Generation 1 cartoon episode, "More than Meets the Eye, Part 2", which plugs into either of the headlight-holes that normally accommodate Prime's fists. Additionally, Prime came packaged with a ring binder folder designed to hold the pull-out character file sheets that were included with all the other Transformers Collection reissues. Notably, this figure reinstated the original, thick version of Prime's rifle as the standard for all future Japanese reissues.
In "Predacons Rising", Bumblebee, Jetfire, Jetstorm, Optimus, and Sentinel chase down the fugitive Wasp, but lose him to Swoop while bickering about what to do with him. They go after Wasp, only to find out that Blackarachnia has captured him and turned him into Waspinator. When Waspinator malfunctions and explodes due to the instability of the transwarp field that mutated him, Blackarachnia contains the blast with her webs, resulting in an explosion that consumes them both. Optimus is saddened by this, unaware that she and Waspinator are still alive on another planet inhabited by animals.
Only available at ToysЯUs, this Optimus Prime is a redeco of the Classics figure. He features a cartoon/toy accurate deco on his truck/robot parts, and vacuum-metallized upper legs & front grille to evoke his original Generation 1 toy. Like every Classics Optimus Prime mold, he still features all of his accessories. This Optimus was packaged along with the redecoed Age of Extinction Optimus Prime.
Platinum Edition Optimus Prime was only available as part of a 2-pack with Megatron, named "One Shall Stand, One Shall Fall" after Optimus Prime's famous line in the movie. In the United States and Canada, this set was officially released as an Amazon exclusive. It was also available in several of Hasbro's Asian markets (namely the Philippines and Singapore; it's currently unknown whether it was exclusive to any particular stores there or not). In Australia, it was sold at Myer stores, whereas in the United Kingdom, it was both sold at Toys"R"Us stores and available via Tesco's website (but never found in stores). Surprisingly, it was (and still is) a common find in Brazilian online stores.
The Animated Tech Spec written by Derrick J. Wyatt in Hasbro Transformers Collectors' Club #24 states that Rodimus as having the rank of Prime and clearly being the leader of a team like Optimus and Sentinel. His toy is listed as "Rodimus Minor" which Hasbro explained at San Diego Comic-Con 2009, was because "there were already too many Primes in the toy line". Within the series, he is only ever called or credited as "Rodimus".
This redeco of the Dark of the Moon Voyager Class Optimus Prime figure features a really unusual deco pattern consisting of red transparent tires, the vehicle front grill and fuel tanks (the fenders remained opaque red due to unpaintable plastic). Some of his parts like the vehicle front hood and the truck roof features a pattern similar to the ones used for the Tech Specs in the Generation 1 toys. He features a new sword and shield accessory, which can be used to decode the patterns.
Movie the Best Nemesis Prime is a redeco of the TakaraTomy exclusive Calibur Optimus Prime figure, with darker paint and plastic, and bright, metallic, purple eyes, and the mark of Quintessa on his face. As for the weapons, the Caliber Axe uses translucent purple plastic instead of orange, and there is more silver at the base of the blade. The Overshield has black replacing the original's silver and purple replacing the original's bronze.
Released to commemorate the 10th anniversary of Revenge of the Fallen, this Studio Series Optimus Prime is a retool of the figure above, featuring many new parts, namely a new backpack, chest piece, and a pair of non-transforming fenders/legs, to better resemble his appearance in the first two movies. These new parts allow him to combine with Studio Series Jetfire to form "Jetwing Optimus Prime." His color scheme features a much higher contrast than the previous release. Instead of Energon Swords, he now comes with an ion blaster like that used in the battle of Mission City. He also comes with a cardboard backdrop display depicting the highway fight with Bonecrusher from the first Transformers film.
The Japanese release of the figure also underwent the changes in weapon shapes, but never featured a silver Roller; instead, their original release of Prime featured a Diaclone-style Roller without the two rear pegs, and the differently-shaped launcher that accommodated him, before a running change switched over to the Hasbro version of the mold. Finally, in some European countries, Prime sported red feet, as opposed to his traditional blue; this version of the figure is also known in some cases to feature a differently-painted forehead crest which leaves the three central indentations unpainted blue.
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