Wiz has a lot of money, if that hasn’t been made clear. Since his money’s long, he can pay the price on any bill.
One could also make the case that he is “paying the price” of having too much money by being expected to pay for everything and for being extremely famous. However, as he alludes to a few times in Taylor Allderdice (and “My Favorite Song”), he doesn’t mind spending his G’s and being a world-renown celebrity.
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