If the UFC is going to charge $70 for PPV cards with only 2 or 3 notable fights, the ring cards should be fully nude. Otherwise, abandon the PPV model and get rid of the ring girls, broadcast every card on regular TV with commercials.
For cards that would have done over a million PPV buys, jack up the price of commercials, similar to what happens for the Super Bowl. The cost of 30-second spots on the Super Bowl broadcast is $5.6 million. Regular season NFL games average $625,000 for 30-second commercials. A Conor Mcgregor card doesn't attract more viewers than the Super Bowl, but it does attract more than the average NFL regular season game, especially among the 18-34 make demographic that advertisers pay a premium to reach.
UFC PPV main cards last about 3 hr 30 min and could easily contain 1 hr 20 min of commercials. That is 160 commercials lasting 30 seconds each. Even if they charged $625,000 per commercial, that's $100 million in revenue ($625K * 160).
To do $100 million in revenue by selling PPVs for $70, they would have to do 1.43 million buys. Not to mention, they could charge a lot more than $625,000 per commercial on cards with McGregor.
The UFC is leaving a lot of money on the table by clutching to the outdated PPV model. It made sense 20 years ago when mainstream advertisers didn't want to be associated with MMA. But that is no longer true. Case in point, ABC just broadcasted a UFC card on a Saturday afternoon. It's time to abandon the PPV model (and the ring girls) and switch to a regular broadcast model funded primarily by advertising revenue, just like other sports do on ESPN.