Pity its US based, if it was in the EU they could be done under the competition laws but so far only the os side of microsoft has been taken to court under those, idk why no ones done the same with the console side, initial outlay of legal cost probably.
Anyway this is no different from the monopoly they're running on hard drives. You can get a 2tb drive for ~10 quid more than the ms 120gb one, and banning consoles doesn't pervent cheats, it simply destroys the second-hand market which rather conveniently, it larger than the first hand one.
Big business breaking as many laws as it can before it gets done, so what's new? I takes almost a year for one of those cases to go through the EU court but at least every successive fine is an increase on the last, only a matter of time (read years).