Hi, Michael, ive learned that if you don't buy the kits when they come out, they get discontinued, can be hard to find, or unless you're lucky, will cost you ALOT more than they use to. But that could just be the kinds I like to build though too I guess. if your into Camaros, Mustangs, Impalas, or 57 Chevys, you will NEVER have a problem finding them cheap.