Earlier quoted context omitted.
They have mortgage payments: it's trivial for a house to just up and eat $10k of your money, for one example. That's the big differentiator: at this level of income, they can afford to just pay random expenses that many folks would have to just jam onto eternal credit card debt. EDIT: nvm, I misread the parent, and other sibling comments illuminate the actual breakdown of this line item.
Yeah but $10k a month?
2 or 3 years of wealthbuilding at that rate is enough to pay for the median American house in cash.