After you've played Bioshock, you'll want wo hang this Roger Ebert on a tree!
Games can involve meaningful content, thus if done right, should be considered as art as well. I don't consider Doom3 as art because it's dull and meaningless, but I consider Thief or System Shock2 as art. People can fall in a picture or a sculpture or a movie or some music piece into love, talk about it, criticize it, analyze it, praise it's artist, consider it as art. It's eactly the same with some games, too!