Oh trust me, DC fans are just as hard to please. There's plenty of people that deride Mattel's character choices. Nerds will never be satisfied, no matter what. Especially since CIE will only have 12 figures a year, a slot in the sub is seen as precious. Some people, if they are unhappy with one figure are ready to write the whole thing off. Me, while I may not have interest in every figure that they bring out, I'm still happy to have them to fill out my shelves. And hey, sometimes seeing an awesome action figure of a character has actually made me interested in the character and I go out and read them.
A club like that for Star Wars isn't really out of the realm of possibility, though. Hasbro is doing the same thing with Transformers and G.I. Joe. If those are hits, maybe a Star Wars one could be in the future.