There's no question that becoming a billionaire changes your life.
"You've won the lottery," said billionaire Todd Wagner. "There's no other way to really describe it. You can walk in a store and instead of saying, 'How much is that suit?' you can buy all the suits."
Wagner co-founded internet start-up Broadcast.com with Mark Cuban and sold it to Yahoo for $5.7 billion in 1999.
"The first year, of course, you're happy every day," he said.
Wagner, who grew up in the blue-collar town of Gary, Indiana, worked at a law firm before becoming an internet entrepreneur. When they were first building the business, he said, he had a negative net worth.