Tetris?? What are you people, twelve? Are you old ladies that go to Baptist Churches? Sorority sisters partying with Zima? Play some man-games...

Heh. I've always found GTA and the stuff like that a lot more infantile than Tetris or Pac-Man.
I'll have to agree with you there. Despite it's adult content, GTA is very base in its gameplay. Blow shit up. Crash cars. Etc. Puzzle games like Tetris need a lot more thinking and problem solving. There's a reason why games like Zuma control internet gaming.