With the amount of money he has, past getting a few mustangs, and some allowance for my kids, as well as the huge house and all of the costs that go with hat, and the other obvious stuff, I would spend a good amount of money to charity, not because I care, but because it is good for my reputation.
With Mehr money that I know what to spend it on? Charity, duh! After I get my crap first...maybe a bunch of nice electronics, books...maybe when I'm older: a house!