Originally Posted by Will Cooling
And in terms of the quality of the card - there's a world title fight (obviously last), a big Vegas derby between two popular heavyweights (obvious co-main), Quinton Jackson fighing Matt Hamil (Jackson's a proven PPV draw), Brian Stann facing the debuting former Sengoku Champion Jorge Santiago.
So really its about whether they get the death spot on second of the main card instead of Struve vs. Browne. Again I feel they'd get more attention and career momentum from being shown to an audience of 1million television viewers. Additionally it could be an issue of a) Zuffa wanting to boost the prelim numbers to keep Spike happy and b) wanting a strong lead-in for the ppv broadcast because of how badly UFC 125* did.
*I meant 125, my bad.
Also, the very first fight on the main card is usually a "swing" fight. I've seen it before, nearly every fight on the undercard goes the distance so they put the first fight on the main card AFTER the main event.