Even after the current crash, the Nasdaq has returned 13+% annually over the past 15 years. That's a pretty safe bet considering it is literally zero effort. I suspect there are plenty of domainers that would have been better off choosing that route, with the bonus of maintaining 100% liquidity. There are probably many domainers that think they are worth 7 figures and up on paper, but have almost no liquidity and are therefore struggling to pay renewals.