It really depends on what your priorities are. My current system is an FX-8350, and the new stuff does look like a really nice upgrade. It's definitely faster, and definitely more power efficient. But I do need to factor the cost of a new mainboard, CPU, RAM against keeping what I have. I'll pay more for the ongoing running cost in electricity usage for sure, but that usage is dwarfed by the replacement cost of all that hardware--it will take many years to break even. So I'll probably hold off for a year or so, and the cost of all the parts will be even cheaper by that point. I'd be in more of a rush to upgrade if what I had was noticeably bad, but the 8350 is a fine processor for everything I do, from gaming to compiling and running multi-threaded analysis code. While the new stuff would be nice for all these things, it's not sufficiently compelling to replace the hardware today.