Nah. Or rather, I don't doubt that some billionaires do, but they're not the target audience. First, not many billionaires spend time on Reddit. Second, if you'

Nah. Or rather, I don't doubt that some billionaires do, but they're not the target audience. First, not many billionaires spend time on Reddit. Second, if you're Warren Buffett and have obscene net worth but minimal living expenses, there's really no point. It doesn't matter if you're spending .1% or .125%. If you do borrow against your assets, it's usually to invest, not pay the bills. People preoccupied with strategies like that are the ones who are burning through their net worth at a much higher rate, so the difference in tax burden actually makes a difference. They're usually just wealthy enough to have a "wealth advisor". Doctors, successful techies, business owners, etc.