I go for different games.
Before my current relationship, I was quite happy playing Zelda, Pokemon and RPGs like Final Fantasy. All good games, but my taste was rather limited! Now, I seek out the best FPS like Portal 2, Half Life 2, and Halo Reach; my list of games to play has extended greatly to games like Bioshock, Metal Gear Solid, and Knights of the Old Republic.
(I still need to play more HL2... )