Well, the guy obvious has a lot of dough...but he also likes living a crazily extravagant lifestyle. Probably more so imo then he ultimately cares about legacy stuff, or a public image that is already in the toilet with a lot of people anyway. I mean typical bragging BS claims aside, how much is Mayweather Productions and/or sponsor deals really bringing in for him over the next 20-30 years if he's not fighting? How many more times after a CM fight, if any, can he go to this well?
If you were the UFC, how much would it be worth to your brand/sport to see CM win this fight? Again, not to be that guy (which I'm fully being atm) but if there was ever a time where you can make the argument that throwing a circus fight could make sense for all parties involved...this is pretty much it. Or at least that would be my nagging mindset if I was laying a ton of money down just to collect a quick 10% interest on it.