I sell my Xbox 360 Arcade games including 6 electric guitar?

ok want to sell my Xbox 360 arcade controller and cables with 6 games: cod4, gta4, and Sega Superstar Tennis / 5 arcade games, NCAA March Madness 07 Tigerwood PGA Tour 06 and 1 PSP game: Tom Clancy Rainbow six vegas how I get if trade i at all in GameStop? or an electric guitar .. and I forgot to include this game: cod2

all of these games have a game that came out after that, so will only get about a dollar for most of them and game room, worth about 100 used for what will only get around 50 for it. i dont think you will have enough for a guitar.

HOW TO PUT GUITAR WAY TO HEAVEN 4 AMPLIFIED/AND 5 ONTO THE PSP