Best way to trade games?

[Schmittroth]

I'm trading in a small stack of PS3 and DS games. What's my best option considering I'm looking for older and most likely used games to replace them? I'm considering Goozex.com, Glyde.com and of course my local Gamestop. Of course I know my current games mostly suck and the ones I want are pretty top knotch, but that's why I'm looking for options.

I have PS3:
Batman: Arkham Asylum
The Orange Box
Metal Gear Solid 4
Mercenaries 2
Mirror's Edge
inFamous
Bioshock

I have DS:
Meteos
Ninjatown
Glory Days 2
My Word Coach: English
Chrono Trigger

I want PS3:
Red Faction: Guerilla
Brutal Legend
Darksiders
Uncharted 1 & 2
Ratchet & Clank

I want DS:
Professor Layton 1 & 2
Peggle DS
GTA: Chinatown Wars

[Taustin Powers]

I find that when I sell my games on Ebay I end up getting more money for them, than if I trade them in at a store or something. Only problem is that I can't sell mature-rated games on Ebay, so those I usually trade in at Gamestop when they have some sort of special deal on a new game.

[Dagless]

I find shops to be a waste of time. You'll get virtually nothing for them, sometimes (around here at least) they'll offer you "Trade in these 4 games and get this new one free!" :rolleyes:.

Craigslist, eBay, hell even try the marketplace board here.

[ManhattanPrjct]

Any time you sell to a store, they need to get a margin when they resell your game, so you'll never get a good price from gamestop. Craigslist has always been good to me.