The only thing wrong with the Xbox is the Lazer inside the disc tray cannot read discs anymore, but you can buy all games through the xbox market online, There are already going to be a few games already on the xbox when you buy it like,
Assassin's Creed II
Dead Rising 2
Far Cry 3
Skyrim
Grand Theft Auto 4
Minecraft
Modern Warfare 2
MX vs ATV Reflex
NBA 2k13
Red Dead Redemption
Rainbox Six Vegas
Sleeping Dogs
Spartacus Legends
State of Decay