If you look at the steam hardware survey 50%+- of the population is running on dual core 9800gtx range. Which is going to mean when the new consoles and nextgen games come out there are going to be a lot of people not able to run the games. Are you going to switch from PC to consoles?
EDIT: My PC should be fine for running nextgen games on high+ so I will be staying PC.
I just built a new rig that is stronger than the next gen consoles. But if I did have an older rig, I would never switch to a console, I'd just build a new PC.