Reference cards usually break around the holidays....around June the "improved" versions come out. While a 3930 will top a 2500K in gaming, if that is the only usage, I can't see paying 3 times as much for the CPU for the moderate increase in fps.
Reference cards? I assume you mean the early life failures because the bugs won't yet be worked out of the 7000 series video cards?
I get that my marginal gain in FPS isn't that great in the 2500k v 3930k alone. The 3930k is currently double the cost. I'm hoping the 3930k cost will drop a bit with the new product introductions at the CES. The PCI-E 3.0 motherboards don't come cheap either. What I'm wondering is if anyone knows how much benefit PCI-E 3.0 the system in FPS.