Violence. Let's face it -- we all enjoy it.
It's why the rap group N.W.A. was a hit with suburban white kids, why films like Scarface, Reservoir Dogs, and Friday the 13th became cult classics, and a big part of why we watch MMA.
Sure, we can calmly and eloquently explain to others how every individual aspect of the sport can be found in the Olympics; except for grappling with strikes, but, "That was called 'Pankration' and can be traced back to the earliest of all sports, even depicted on ancient vases and pottery," you might explain like a wise school teacher.
But we should all be able to admit it's enjoyable to watch Mirko CroCop's highlight reel and watch "the cemetary kick" topple a series of human dominoes, or admire the quick and deadly beauty of punching flurries delivered by Igor Vovchanchyn, Vitor Belfort, or even Phil Baroni while their opponent's head bobbles back and forth like a speed bag.
Wanderlei Silva was asked for his prediction on an upcoming Pride fight, and his answer became legendary: "I promise violence." And violence is what he and the Chute Boxe team were known for providing on a regular basis.