I'm very interested in the Collector's edition. In fact, I've already pre-ordered one. When the statue is revealed I may switch down to the standard edition though. Just depends on whether or not I think the statue is worth that kind of money.
I think the Limited edition is a rip off. It comes with unspecified digital content, that sounds like it is for multiplayer use only, and you want to charge an extra $40? No thanks. Since I don't know what the digital content entails specifically, I think $69.99 or maybe $74.99 would be a fairer price.
I think in the future it would be an even better idea to wait until everything is nailed down and finalized so people don't have to guess on which version they should get.