LeBron James is an 19 year old phenom (his favorite breakfast food is Fruity Pebbles) who signed a $19 million contract out of high school with the Cleveland Cavaliers of the National Basketball Association. This Forbes article explains why James is a bargain, even at that price:

By the time the 19-year-old James turns 25, the muscular 6-foot-8, 240-pound forward will have earned upwards of $200 million from playing basketball and sponsoring sneakers, trading cards and soft drinks. That’s a record for an NBA rookie: Not even Michael Jordan made that much in his first seven years.
Could one player be worth so much? Actually he’s a bargain. By James’ seventh season, FORBES calculates, he’ll have generated $2 billion in revenues for his team and all his sponsors. Not a bad return.