dollars, the server or whatever you want to call it was a big part of that. its pretty neat, he can store something like 400 dvd's on it, ever tv is hooked up to it (every room has a plasma or lcd) they all have a menu. and their own special remote. everyone can be watching a different movie off the server in their own room. or listening to cds, direct tv, anything they want. and they have control over the house from a few of them as well... thats not even half the shit it can do either.
of course this is a 20 million dollar house so its really only a small fraction. that price wasn't including the speakers throughout the house, the tv's, etc. etc.