Monster Buy Back makes it easy sell MP3 players and iPods for cash. The digital music technology is advancing each day. Let us help you from being stuck with old technology bu offering you cash for iPods and MP3 players. Want the latest in digital music technology but need the cash to fund your purchase? Let us help you out. Have old MP3 players laying around that you do not know what to do with? We’ll give you cash for any iPod or MP3 player.