Mark Cuban has cornered the market on "playfully eccentric tech nerd sports owner," but he is in serious trouble if the Golden State Warriors fall into the hands of Larry Ellison. This guy practically invented the arrogant, kooky billionaire.
Cuban is very, very rich. But Ellison is like ... rich. He took $1,400 and a database program he originally built for the CIA and turned it into about $56 billion of personal wealth. (His stock has taken a hit the last few years and is down to a measly $28 billion in 2010.) Steve Jobs was at his wedding ... as the photographer. He's doing very well.