How much Can I sell my Xbox 360 for?

I've used my Xbox mostly for Netflix and need a little extra cash.

It's 250 GB and includes all of the cables, control, headset, GTA 5, Call of duty MW3, Forza 4 and minecraft.

Probably $200 as long as the games are in disc form and not downloaded… Cause if they're downloaded you can't sell them cause they're tied to your specific account and nobody else can play them