If I was Bill Gates rich I'd do two really things stupid things with my money:
1. Right when you walked into my house I'd have an assload of those replica storm troopers, and arrange them in all in formation, also when the door opened Darth Vader's theme (The Imperial March) would play, kinda like this:
The Setup:
The Music:
2. I would have a bar in my basement, but I'd build an exact replica of the bar from Cheers (the tv show)
Would you guys do anything as excessively wasteful?