err what Ray?
Bioshock is definitely GotY, hands down, an instant classic, and easily one of the best games ever made.
I do not see myself replaying it, though. I feel safe in saying that I found a good 99% of everything in the game
When I think of game of the year, I think of a game that is simply fun to play, even on the fourth playthrough. (for me, games like Painkiller, Far Cry and STALKER)