Don't forget all of the marketing gibberish that the companies like to spout. They can only make kits of things that will sell. That's probably one of the reasons that the older kits keep getting reissued. Most of the ones that would REALLY sell have been been cast before, so it's cheaper and easier to re-release an older kit than to tool up an all new one. That's also why almost every company makes the 555 Chevy's, any model Corvette, Mustangs, etc., but good luck finding a '41 Dodge or anything unusual.