PC gaming isnt going anywhere, with the advent of middleware that allows programmers to release on all platforms why would they not release on pc and cost themselves money?
As for the original post, how did Crysis sell 4mil 360 games when it's a pc only release?
COD4 sold just under 4 mill on the 360. 5 mill copys of halo on the 360.
Within a year the consoles will be behind the PC in technical ability anyway, its the nature of the beast, they aren't upgradeable. (ignoring the cost issue ofc)
We should also remember the level of piracy on PC titles.
There's one thing that the PC does better, then any console in the near future won't.
And that's the fact you can play a game while you have a smaller screen with porn on it.