That's insane that you pull over 1K with your system! Although I guess it does have a Sandy Bridge E in it with two 580's.
For gaming I would stick with the 1155 cpu socket. The 2011 socket cpu's have a ton of processing power because they have 2 extra cores, but in every gaming test I have seen the 1155's beat them out at fps. Core for core and clock for clock the 1155's are faster and since no games (or possibly very few) take advantage of more than 4 cores, the 1155's are better gaming cpu's than the 2011's.
(1155's are the Sandy Bridge and Ivy Bridge cpu's. 2011's are the Sandy Bridge-E Cpu's)
Besides you can get good 1155's for under $300, while the 2011's start almost $600.
As for future proof, in my few years building computers and such, I don't think any of them are. Companies are always claiming it but most of the sockets don't last more than just a handful of years. They over design the sockets when they first come out but 1 or 2 generations of cpu's later they max out their potential and change to something better.
Intel has already stated that socket 2011 will support the next generation i series processors; that is only why I stated that - socket 1366 has been through a few generations already and I road that out until its end of life; it proved to be worthwhile as my old 2.6 GHz i7 920 overclocked to 4.5 GHz romped for quite a while in that socket.
Also its worth noting if you came from a 1366 socket many new socket 2011 boards support 1366 CPU coolers and water blocks. So when you buy a 4-500$ motherboard with a 2011 socket you dont have to go out and buy another 120$ 2011 waterblock for your CPU; you can just use the old 1366 block (which ultimately saves at least some money since the high end cooling blocks will interchange from old to new).
It's not all about gaming for me.
I do compiling of many different large file formats, multinetwork NVR IP video recording & streaming, home theater encoding & streaming, & some decent gaming 1080 Battlefield 3, etc... (sometimes all at once) all off the same tower.
My rig is watercooled and overclocked quite a bit; I def benefit from the socket 2011 architecture and quad channel memory.
Really could care less what stock to stock benchmarks shows for games - its primarily graphics card performance nowadays anyway; even the oldest i series processors turned up are good enough with a set of decent GPUs.
Put the two platforms into a real task intensive scenario and see who comes out on top (not browsing the internet or playing battlefield).
A handfull of years in the computer chip world is future proof haha. When my overclocked socket 1366 could outperform or match even extreme series processors for 2 years of its life that is acceptable performance to me.
GEEK IS A LIFESTYLE BUDDY!!
