I trade them in. Once I beat a game I'm done. I usually play about 5 games a little at a time,until I beat them all. Once I beat a game I'm done. I almost never replay a game twice. It usually takes me months to beat a game,because I can never seem to focus on just one game at a time. I have to try them all. lol

Oh man, that game was so dissapointing :(

I had such high hopes for it...

I would trade them in if Gamestop actually paid me a decent price.

I couldn't give them away - it would be like abandoning your pets or something.

I trade the games that I know that I won't play anymore or get tired of playing. I keep the good games because I might played them again later.

I keep them and play them. I have 20 grand worth of games in my room aha. My favorite game to replay is final fantasy 9.
The only games I dont replay are games that have new versions. Like i never play smackdown vs raw 2006, cause I have 2009. But i will still play killzone 1 or instance because the experience is different. I played my ps1 collection a lot on ps2 and alot on ps3, but its my ps2 games that are being less used. Still play the better ones tho.

I picked 2 because I have traded almost all of them. Some like ESIII I ended up trading in more than once. Bought the goty to keep. Agree on TR Underworld. Not a bad game but Legend is the only one I choose to own. I have 30+ games I enjoyed and will play again.

Wake I will trade towards PoP:FS after I max the gs. Wish I had kept SoT. It's BC and hard to find now. RDR on the other hand is mine forever. I can't afford not to trade at all and why keep a game with minimal replay value?

I've only traded crappy Mega Drive games, because at the time it was hard to know which games were good. It was a direct trade at the store though. I never lost a penny for it.

I remember trading Pinocchio for Virtua Fighter 2 and the Power Rangers fighting game for Separation Anxiety.

I also traded Toy Story, because it never worked well. I tried two copies but they always glitched at some point.

From there on, I never once lost or traded a game. I always keep them. Even if they suck.

Keeping them and building a collection since 1990 ^^. Despite 20 years have passed, I only have about 200 games. Maybe because I only buy great games or games that appeal to me.

I don't trade, the prices you get for trading in games isn't nearly worth the replay value I get from keeping them. Also I'm a collector, I love having a big collection ; )