Apparently, early plans for the shield were to have it colored gold and silver, but it was later changed to gray and red. When a hand-painted prototype of the toy was first displayed at the 2013 New York Comic Con, the shield was colored yellow and silver; in addition, the original versions of the official Hasbro stock photos also depict the gold color, but the versions featured on the back of the toy's packaging were edited so they would accurately depict the final toy's colors for the shield. Meanwhile, the versions of the stock photos provided to websites and online retailers depict the shield in its final colors for the robot mode, whereas the vehicle mode photo is the unedited version featuring the shield's original colors. Furthermore, UK-based retailer Argos also featured unedited versions of the stock photos for both modes in one of its catalogs, causing some confusion among fans.[5] Sometimes, the spring loaded "Automorph" feature in his head is too strong and causes the head to fly off...
Oh, also, I should add that I would like to see if this trend is the same for specific themes, or just over all themes. Although I would guess that the individual themes would show the same general trend you discuss here, one reason individuals might believe in the “price increase fallacy” might be because of the individual themes they support. But again, I think that if you do this, you will find the themes fit the trend as well. If you are looking to go into the numbers more, this might be an interesting area to investigate.
Cloud Optimus Prime is a redeco of the Classics Voyager Class Optimus Prime mold, transforming into a modern cab-over style truck of made up model, dominated by a large "energy unit" on his roof (actually a wind vane). He features a similar Generation 1-inspired deco to the original toy, but aims for a "cleaner" appearance by omitting many paint details such as stripes on the cab, while the energy unit is colored black with a silver Autobot insignia in homage to Generation 2 Optimus Prime. In robot mode, Prime's energy unit transforms into a large blaster and his smokestacks transform into a smaller laser cannon. Additionally, both weapons can combine together to form a double-barrelled over-shoulder weapon. He was available exclusively at TakaraTomy Mall.
Part of the first assortment of "Custom Kreons", this version of Optimus Prime comes with a buildable parts rack on which to hang/store his many many extra pieces. His tampographs are much more heavily-detailed than the original Kreons, based on the original Optimus Prime toy. His "normal" helmet (and small sword) are chromed, plus he comes with an extra clear-plastic helmet, torso and legs. He also has a pair of extra arms (originally from the Kre-O Battleship aliens), plus a buildable large rifle, a buildable wing-pack, and a ray pistol (originally an Andorian blaster from Kre-O Star Trek).

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.
Optimus Prime (formerly Orion Pax) is constantly, if not always depicted as having strong moral character, excellent leadership, and sound decision-making skills, and possesses brilliant military tactics, powerful martial arts, and advanced extraterrestrial weaponry. Optimus Prime has a strong sense of honor and justice, being dedicated to building peaceful and mutually beneficial co-existence with humans, the protection of life and liberty of all sentient species.[2] As the current Matrix of Leadership bearer, Optimus Prime is the de facto leader of the Autobots, a faction of a transforming species of synthetic intelligence from the planet Cybertron. The Autobots are constantly waging civil war against a rival faction of transforming robots called Decepticons. According to Bob Budiansky, co-writer of the Transformers series, Dennis O'Neil was responsible for his name.
When Optimus and Hound eventually made their way there, they found that C-81 and his gang of criminals had escaped prison and were combating the Waruder soldiers responsible for the planetary shutdown. Optimus mistakenly assumed that C-81 and his goons were there on purpose, and joined them in fending off the invaders. They were soon joined by Burn Out and Lift-Ticket, who informed the Cybertronians that they had stumbled across the Waruders' main hive. Lift-Ticket explained the Waruders could be repelled if he managed to get a sample of the hive's venom. Optimus was willing to go along with Lift-Ticket's dangerous plan, despite C-81's skepticism. However, the battle came to an end when C-81 managed to grab a hold of the Waruders' leader, and forced the bug into peaceful negotiations. Optimus agreed to allow the Waruders to migrate to another Cybertron via C-81's illegal interuniversal gate, in exchange for a venom sample that would be used to create an anti-toxin to revive the TransTech. The General nonetheless impounded C-81's gate afterwards, though he did let the criminals "slip away" as thanks for their part in thwarting the Waruder invasion.
The instruction manual for the MP-04S Convoy Sleep Version reveals a hidden message saying that Rodimus will be the next installment in the Masterpiece series. Concept sketches of the figure were released online in July 2010. The figure is a faithful modern recreation of the original G1 toy. Gimmicks include retractable binoculars, spinning saw blade and the Matrix of Leadership, but the figure's main feature is the ability to transform into both Hot Rod and Rodimus Prime. The transition between the two incarnations involves rotating the face, extending the legs and adjusting the spoiler on the back.
On a mission with the Triggerbots to stop Megatron from claiming the Underbase, Prime was forced to jettison the massive databank into space to prevent anyone from acquiring its power. With this action, he proved his wisdom and skill to the Autobot Council of Elders. He continued to move up in rank, eventually becoming the field command over the Autobot armies.
Just as Marvel Comics produced a companion comic to the original Transformers toyline that differed from its animated counterpart, so did Dreamwave produce a comic to go along with the Transformers: Armada and Energon lines that owed little to their animated fellows. This incarnation of Optimus Prime, however, is not particularly different from his animated counterpart in personality.[51][52]
Takara's version of the figure was released in their markets slightly earlier, as the first of what would come to be several installments in their Masterpiece line. In addition to coming with a cardboard trailer that the buyer could assemble to "complete" Prime's truck mode, Takara's release differed from Hasbro's by featuring longer smokestacks (kept short on the Hasbro version for safety reasons, but incorrectly shown to be long in the stock photography shown at right), and lacking the black scorch-marked "battle damage" paint applications Hasbro included on the figure's shoulders, wrists and abdomen.
Somewhere along the line, G.I. Joe picked up the familiar storyline that we all best associate with the toys: G.I. Joe Team vs. the Evil Cobra Organization. A classic tale of good vs. evil. Well guess what. Somewhere else along the line the franchise picked up a very different storyline and a new look to boot, highlighted by the newest figurine: The DARK NINJA MASTER.
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.
The color scheme of this special redeco of Super class Optimus Prime was decided through a colouring contest held in the December 2004 issue of TV Magazine, in which entrants coloured in lineart of Prime in the scheme they wanted to see. The winning entry rendered Prime in a... distinct palette of grey, cream, dark red, and purple chrome, with blue, white, and yellow drones. It was limited to only ten pieces, making it one of the rarer Transformers toys in existence.
Early in the war, when he was still known by the name Orion Pax, the Autobot who would one day be known as Optimus Prime was ordered by Zeta Prime to escort the Decepticon Prisoners Wrack'n'Ruin in a prisoner exchange, while accompanied by Nightbeat and Alpha Trion. As the group made their way through the Rust Spot, they encounter Slicers and had to fend them off. Orion Pax and his group eventually made it to their meeting spot with the Decepticon Bludgeon, only to be ambushed by the Decepticons. In the confusion, Alpha Trion was taken prisonner, and Orion Pax set off to rescue the elderly Autobot. He and Nightbeat succeeded in returning Alpha Trion under the protective custody of Zeta Prime, but Orion was himself captured in turn. Strapped to a shuttle aimed to crash into Iacon, Orion's fate seemed uncertain. Orion's Gambit
Trailer (トレーラー Torērā) was often sleepy, but was the strongest of the BeCools. He could carry stuff in his trailer. The Self-Introduction Chapter When Trailer came across a traffic jam, he crashed into the BeCools holding him up, forcing them to transform into robot mode and realize they could just walk past the jam. The Story of the Surprising and Big Traffic Jam! When the same bunch of BeCools were stuck before a hole, Trailer selflessly used his body to act as a bridge for the other BeCools. Yellow Sports Car was so inspired by his heroism that he offered to fill the hole so that Trailer could pass through. Trailer did so and sped away, leaving Yellow Sports Car in the hole. The Story of Mister Trailer's Big Success!
On another plane of existence, Optimus travelled the path to the Matrix, guided by the voice of his old mentor Alpha Trion. The path led him to Grimlock, who had also been killed by Megatron; Prime rescued Grimlock from Kremzeek, the demonic eater of souls. At the gateway to the great beyond, they encountered Bludgeon, who announced that only those who bore the "key to Vector Stigmata" may pass through. Prime realized that the wounds on his body form the key, but the angel insisted that these would grant Prime access. Prime took Grimlock's sword and bestowed the key on Grimlock, allowing the former Autobot King to ascend into the Matrix while Prime stayed behind. Transformers vs. G.I. Joe #12
We know that despite starting his fictional life as a lovable, horn-headed robot who could turn into a Volkswagen in Generation 1, Bumblebee's most well-known these days as a round-headed robot who turns into a Camaro. In fact, younger viewers might not even realize he was ever anything but the Chevy muscle car. But there’s one quirky continuity where he’s able to switch between original and movie modes at will.

Universe Optimus Prime is a redeco of the Robots in Disguise Scourge Spy Changer toy. He replaces most of the black plastic with predominantly red and blue, with silver for detailing, with an overall deco making him resemble the original Optimus Prime. Like most Spychangers, he features high speed axles and can roll very well across smooth surfaces, but lacks the weight to propel him quickly.


The TakaraTomy "Autobot Alliance" release of this toy has some significant differences, including casting the red plastic in a darker shade, making his shin and wheel joints grey rather than Hasbro's bronze, painting the Matrix of Leadership silver, and swapping out the dual energon swords for battle hooks, similar to 2010's Leader class Optimus Prime. However, due to the Japanese release retaining the Hasbro packaging, the box still advertises the dual energon swords rather than the hooks. He retains the masked face used for the Hasbro release. 
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