It's always more exciting to see 2 fools pound each other with their fists. Doesn't necessarily make them better fighters though. If I can beat a dude on the ground, without taking a chance of getting ko'd by a blow, then that's where we're gonna go. Just not exciting for the blood thirsty masses to watch.
BTW, I'm not allowed in the sport because of the no 1 punch decapitation rule.