What do you do when you have a boatload of money and nothing to use it on? Why, spend it on sports, of course! Some people buy season tickets and box seats, while others buy islands and build golf courses.

Others, though, buy not just seats or islands, but entire teams. After all, what better way to spend your money than to invest in something that makes even more money (and brings pride to your city of choice)? NBA teams -- the gift that keeps on giving. And sports fans everywhere love them more for it. Here are the first seven NBA billionaire owners.