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By that logic, I should be reviewing all five figures that were sold in the BotCon 2007 set (for some reason, Dreadwind is missing from those pictures, but Dreadwind is also part of that set).
For those who don't know, BotCon Thundercracker is probably the most controversial convention exclusive figure in history. I touched upon this a bit when the BotCon 2007 figures were first announced, but the controversy remains even now, well over a year later. The reason for the controversy, put most simply, is that somewhere along the line, whenever a Starscream figure was made (in any line), the figure would soon get redecoed and given a name that homaged one of G1 Starscream's mold buddies, especially Thundercracker and Skywarp, but occasionally Ramjet. This assumption actually isn't universally true, but it's happened often enough to become the expectation.
The reasoning by Hasbro at the time was that the retail market would likely not bear a fourth (let alone a fifth and sixth) use of the same mold in such a short time frame. Allowing the character to be used at BotCon therefore made sense. At least some fans would have a chance to own this figure. And, to be fair, many fans are content with that response. Others seem to argue that they would rather risk never having the figures made at all if the only immediate alternative was a rare convention exclusive. After all, you never know what the future holds. Wait long enough, and there will be another opportunity to use the mold. We could have seen "Classics" Thundercracker released at retail then. The release of Acid Storm just a month or so ago, using that same mold, seemed to confirm the potential viability of this argument.
I would argue rather strongly that some fans complain too much, acting as though they have some "right" to certain toys. Hasbro made the decision that seemed best at the time, and it helped contribute to a very successful 2007 convention. But, even so, there now exists another option. Takara in Japan has released their own version. Of course, it's still not at all cheap. In fact, it's more expensive than the per-toy cost of the BotCon version. So, the complaining is probably bound to continue.
*Or, at least, this is what everyone assumed.