They are 6 year old consoles, and they are showing their age plainly. It's like a trip in the wayback machine
It wouldn't be so bad if they didn't still want £200 for them new. And I've decided against a 2nd hand one given how loud the damn things can be. Plus the problems they can and do still develop, 2nd hand seems a bad call (most sellers want at least £100 for their 2-3 year old unit too).
So I'll wait I guess the 6-9 months. The bonus is that we should have a new gen of AMD cards out by then, and I should have my hands on a 9850 (or whatever they call them now).
I think it would spoil the game to try to play it on a PS3, with all the pop-up and/or fogging, texture compression, etc.