UFC/WWE have the sense and knowledge to know the hardcore fan is much more likely to pay 50bucks to see his favourite fighter/fighters over an entire night and they both dont segregate themselves to showing 1 fight cards.

If you dont particularly enjoy a UFC/WWF main event no biggy, the rest of the night is full of world class matchups, scantily clad women, theatrical entrances etc who cares if the sport in general is either gay or fake.

If you dont happen to be a particular fan of floyd mayweather you dont buy the card end of story.

The day a mayweather-pacquiao card is backed up with jones-hopkins, hatton-marquez etc is the very day boxing takes both showhorse sports to the cleaners.