Bioshock 1 and 2 were ok but I think they could of been better.
Infinite will definetly be different but mainly because it isn't based in rapture I don't think I will get it until it gets cheaper because I don't think without they have done major changes the game mechanics then it will be worth buying it new or preordering it.
Actually i think it's not going to be so spooky as the other two Bioshocks. At least you are fighting humans! The only reason i refrained from bying the other two Bioshocks is because they gave me the creeps. Anyway, as you can see in the trailer you have an extreme amount of choices. You can for instance tell Elizabeth to bring a rocket turret or a doorway or a "cover". You can kill enemies in multiple ways and there is a point where you can choose from 3 different paths. From what i've seen i believe that the stage shown in the trailer, i will play it many many times...