EVENT BUYRATE
UFC 43 49,000 buys (48,669.8) Liddell vs Couture
UFC 44 94,000 buys (93,326.3) Couture vs Ortiz
UFC 46 77,000 buys (76,088.2) - Couture vs Belfort II
UFC 47 104,000 buys (103,391.5) Liddell vs Ortiz

Here's the total revenue for these four pay per views. The UFC's cut of the pie is listed in the first chart at the top of the page. The other 60%, I believe, goes to the distributor (at the very least it's broken up among other parties not including Zuffa):

EVENT TOTAL REVENUE
UFC 43 $1,459,607.60
UFC 44 $2,798,856.38
UFC 46 $2,281,885.60
UFC 47 $3,100,712.50

I didn't know that Tito's that big of a draw. Interesting.

He knows how to sell a fight. I hate to say it but the grudge match thing sells

He looks the part too, if he had verbal skills he'd be an even bigger draw.