They do, just not a great one. They have a decent monetary backing and could be getting more. That along with Fedor and a potential Couture fight is enough.
Interesting fact, UFC buyrates point to Randy being more of a draw than Chuck. Chucks two biggest buyrates were against Randy.
The only people intrested in Fedor are the hardcore fans. Your general fan is intrested in Liddell, Hughes, Ortiz and others. Couture might be ok for a couple of fights. But in the end people will get bored of watching an ageing old man fight.
Casual people are intrested in UFC, not MMA. A card with an ok main event and an undercard full of TUF fighters would draw better than a show between Fedor & Randy. Becauuse other than those two the rest of the card would be full of nobodies and never was'.