I managed a 775 until I needed a dual core for BFBC2 and found that was insufficient. Went to Quad and learned the 128 bit cards were insufficient, then upped to 256 bit cards and ... you get the picture.
Now it is about a year later and I finished building a monster designed to last a very long time. how long? Well that depends on if the game Developers start installing new games onto Blue Ray with the associated bloat.
Magnetic Memory, Optical and wireless ways of conveying data very quickly inside a machine and a growing strength of the CPU to turn into a sort of gigantic brick that replaces the RAM, GPU and Hard drives someday. All stacked.
By then dailup, dsl, cable and last mile ethernet will be dead and we will all need fiber to game online.
The way things are going and accelerating rapdily, I will say for certain that I will be bypassing LGA 1366 the same way I completely bypassed Vista.