I went to the first affliction event, and personally, I prefer watching it at home for pretty much everything except for atmosphere.
Not to be a debbie downer here, but the beer was way too expensive ($9 per beer), the view wasn't as good as it is at home with multiple camera angles, and the retarded booing fans were far more infuriating in person.
On a side note, my boss's brother is the head security guy for Mandalay Bay in Las Vegas. He got my boss 3 $500 tickets to Griffen vs. Ortiz, and has since told us that he can get us $1000 tickets for pretty much all the events.
I'm pretty excited at the idea of seeing my first UFC event live.