One of the sellers at the flea market brought a ton of PS2, Gamecube and Xbox games, and she was selling them for $2 a pop, but every game I checked was either sunfaded, scratched to hell, or missing the disc.
I ended up grabbing a single thing from that booth.
PlayStation Interactive CD Sampler Disc Vol. 7 - $1
The other CD was bought at a booth for a quarter. I also got three CD-Rs, one of which had Windows XP and a key written on it, the other had Half-Life and a key written on it, and the third was labeled "games" and had a bunch of cracked games on it. I dunno if the keys work, but I figured I'd give it a shot.