I've bought dozens of used games on the cheap (and sold my old games) through the following sites:
gametz.com
goozex.com
half.com
eBay
Amazon marketplace
I've never received a game in poor condition. I once received a game that was advertised as including the retail box, but actually only included the jewel case. The seller reimbursed me $5 for that, so I ended up paying $7 for the game.







