I've never been to a live fight personally. From what I hear, UFC shows at least, aren't really worth it because you're never actually right next to the cage due to media seating and whatnot which pushes spectators further back and because of the nature of the ground game, it's boring to watch live because you can't see what's really happening.
In other news, I just got done defending MMA against Cvalda's ignorance in the Popular Things thread. My God, it amazes me how stupid some people can be.