Boxing vs MMA

I admit it I am biased I'm a boxing fan. I grew up watching the sport with my conspiracy crazed uncle Glenn. I watched Muhammad Ali at tail end of his great career. I also remember other great fighters such as Sugar Ray Leonard,"Marvelous" Marvin Hagler, Tommy "the Hitman" Hearns, Roberto Duran as well As Larry Holmes and later on Mike Tyson. I used to save my coins to purchase K.O  magazine. boxing always appealed to me.  It gave me great entertainment there is such a beauty to it especially when I see a boxer get knocked to the canvas and eyes rolled back.  MMA on the other hand has started gaining steam its history is not as detailed but, some think it's better than the sweet science. The fights take place in a mad Max thunder dome type of setting chain linked fence octagon.  I think it's a fad. I don't get why it gets so much love from crazy fans call in and explain this fad to me