With UFC 191 on the horizon, we should be past the “Why doesn't Demetrious Johnson sell on pay-per-view?” narrative. Not only is it stale, but Johnson didn't ask for this. He is one of the very best fighters on Earth; he is the greatest flyweight ever; he is “Mighty Mouse.” He might be a gym rat, but unfortunately, he is also a lab rat.
“Why doesn't D.J. sell?” isn't the most constructive question to ask. Considering that this trope gets revisited each time Johnson fights, it seems more important to wonder why exactly he's being asked to headline a $60 offering once again.