The reason being that I'm afraid it'll be too much like Crysis 2. If I'm going to buy a game for 80$, it'd better keep my attention for more than a week at least. That's just my opinion, anyway, but I'd like to ask you guys who have played it.
For example: I bought Black Ops II, since Black Ops was the only CoD that I ever had any interest in. The only thing I ever do on Black Ops II however, is play zombies since I find the multiplayer to be copy/paste with some more weapons and a few new class customizing tricks.
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TL;DR: Is Crysis 3 similar to Crysis 2? Is the campaign worth replaying? Will the new content in multiplayer make it funner, or will it feel like Crysis 2 with more weapons and modules?