Even Bill Gates....

Even Bill Gates isn't safe from the ups and downs of the real estate market. Now mind you his house is valued at about $140 million dollars, the value can fluctuate (and has) about the cost of yours' and mines' house.

50,000 sq feet
25 bathrooms
8 bedrooms
5 acres

Go check him out at Super House

Another cool place that has houses slightly cooler, but not nearly as expensive is University Park, TX.