Well, of course they have a value in a champion's legacy, but we have to put things in perspective. I often read that a champion is not 'legit' because he doesn't have a lot of title defenses. Well, if the fighter in question went on a 10 fights win streak and cleaned out the division before winning the belt, then in my opinion he doesn't need 10 title defenses to be considered 'legit'. Let's take 2 opposite examples : Demetrious Johnson and Tony Ferguson - Demetrious Johnson, once considered one of the most dominant UFC champion, got the FLW belt after only 2 victories. He then went on a 11 fights win streak before losing to Cejudo, which means he had 11 title defenses. - Tony Ferguson will fight Khabib for the LW title. If he beats Khabib and becomes the champ, he'll be on a 13 fights win streak, and completely have cleaned out the division while having ZERO title defenses. My point is : Is Demetrious Johnson more legit than Tony Ferg because he has more title defenses ? I don't believe so.