However, I doubt a of his followers will purchase a PPV just to watch this fight, the fans maybe love his youtube content but his boxing skills is not good, and the fact that he is fighting against Mayweather, that will put him in big trouble if he gets seriously hurt.
Well, considering the amount that his brother has sold I would assume most of that is from the Youtube scene. So, his following definitely will have a major effect on the buys in to the PPV event.
However, this is an exhibition fight, and therefore anyone expecting that Mayweather is going to go out all guns blazing will likely be very disappointed. Mayweather is a show man, and he'll treat this very much like sparring. He might look to put him away at some point, but he'll coast along with Paul for a few rounds at least.
Logan might be looking to put him down as that would greatly help his career. Although, even if that is the case, and Mayweather is coasting along I still don't see Logan putting a glove on him.