OK, the last time I asked for assistance in picking a present for my son you guys were great help. So, I am asking again.

We are going to get him an XBOX for his birthday and I didn't realize there were multiple choices. The options are
XBOX 360 core $299
XBOX 360 premium $399
XBOX 360 elite $479

Big price spread - anyone have any suggestions on which offering I should get?
Thanks so much for your help