50?! That's insane. I'm the type of gamer who prefers a few near-infintely replayable games over lots of games you can 'finish'. Brawl, Kart and GH3 are on near-constant rotation in my Wii.
Having said that, i'm one level away from completing Super Paper Mario, about 75% through Okami and on mission 26 of Advance Wars: Dark Conflict. I hope to get all that done before I buy another game.