pawel7777, I was more thinking about situation with Figuiredo vs Moreno, Conor Poirier, possible Conor vs Diaz 3, and other fighting series. Imho a real fan would watch any fight where his favourite fighter fights. And the situation with Volk for example and others go to other division for a fight. Each division has perhaps 100+ fighters, but no, fighters prefer to go to other division for more challenge, or because they have beaten everyone in their division (sometimes for 2 times).
Maybe they search for big names in other division. But in past, every division has enough big names. Nobody jumped here and there for a better fight.