Question about EBGames or Game Crazy Trade-ins

[SKINSnCANES]

I dont ever trade in games, and im not exactly sure why. i figure for the four bucks they might give me, id rather have the game incase I wanted to play it again ya know. If I bought a game and I didnt like it, then mabye, but I dont buy that many games anyways. At this point all I play is madden, and recently ive been playing my tiger woods 2003. I might get TW 2005, but I havent beat 2003 yet, and its a really good game already.