BioShock was such an enjoyable game that I just had to have it. What I really like about the BioShock is like I mentioned in my review is its originality. It's not your typical sci-fi shooter, there are no aliens, lasers, or Earth trying to be taken over cliche that's in nearly every sci-fi shooter that's out there today.
If you like shooters, then you might want to check out BioShock and see if you like it or not.
Last I found this on the internet, it lists the 7 games that you shouldn't let your kids play. Ironically, it's all the games we like to play, so it's kind of funny.