I am not associated with this dealer. I almost bought this car, but decided on an M3 instead for now. Thought I'd share what seems like a ridiculously good deal.
There's an 2010 black on black X5M with 76k miles for $36.7k at Audi of Tyson's corner. The miles are high, but it has pretty much all of the options - including extended leather, heads display, M-Drive, and the backseat DVD entertainment system. The price seems pretty darn good for such an awesome car.
http://www.auditysonscorner.com/used...bf573a7ce7.htm