Seth Petruzelli knocked out Kimbo Slice in 14 seconds on Saturday night, but in one respect, Kimbo is getting the last laugh: He got paid 10 times as much money as Petruzelli.The official payroll reported to the Florida State Boxing Commission shows that EliteXC paid Kimbo $500,000 to fight Petruzelli, who made only $50,000 for his efforts. Petruzelli's base pay was $35,000, and he got an extra $15,000 as a bonus for winning. If Kimbo had won, he would have received an additional bonus of $100,000.
Obviously, what this means is that if you're a professional fighter, you're paid primarily for the number of people you can get to watch your fights, not for your performance in the cage. And since most of the people were watching that fight because of Kimbo, that means Kimbo gets most of the money.
By all accounts, 

Now that EliteXC's most famous fighter,
When Tampa Bay Lightning head coach Barry Melrose 
In the MLB regular season, "home-field advantage" is less about fans, and their energy, and much more about familiarity and comfort. Fans don't really get too crazy for regular season games, so any intangible little benefit from cheering and whooping is rare. 
