The return of Tito to UFC and even more, to Cali, was the reason I'm assuming he got paid so much.
Love him or hate him, he = buyrates on PPV and ticket sales in Cali.
I agree that the purse should ALWAYS be more for the winner than the loser though.
I think in the near future, the purses will go up as the popularity of the sport expands.
I just really hope that the corruption of boxing doesn't make its way in to MMA.