I somewhat agree, Bioshock seems like a good game but a little overhyped.
This and Mass Effect were the games I really wanted to see on the PS3 when they were released on the 360 (both Unreal engine based games, so relatively easy to port). Meanwhile having played Mass Effect, that was a huge disappointment to me, Bioshock however IMO seems not to be. Sad I already watched too much youtube footage.