I think I'll go for a PS4 this time around. I haven't had a PSX since the first one (PS1->DreamCast->XBOX->360) but I don't really like the direction that MS is going in with this whole integrated Cable TV/voice-controlled/arm-waving crap.
I'm in no rush though, I'm still happy with my 360 so I'll probably wait till next year to upgrade.
It's a shame Google/Android haven't managed to step-up with a decent alternative, and let's not even talk about the Wii U
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