I'm getting BioShock.
The fact that it is a year old is irrelevant. Oblivion was delayed by a year on PS3, does that make it a bad game? No, it's one of the best games on the console, and in my OPINION *prepares for flames* the best RPG on the market.
Since many people seem to take metascores as 'fact', it is a 'fact' that BioShock on X360 is amazing (96/100). And 2K are making it, not EA like a certain reddish yellow container which wasn't nearly as good on PS3.
I don't care if it's full price, it's new on PS3. So I recommend it.