But that's not what he's doing. He's got a resort with hotels and shops. That involves multiple risks that are pretty high.
There's constant upkeep with demand forecasting and etc etc.
Even if you were talking about buying land and hodling... that's also risky depending on when you buy the land and if it even appreciates. Although, generally, it does appreciate but very slowly and over time.
Meanwhile, domains... you just acquire them, then pay a nominal yearly fee..... very low risk unless domains in general stop being used.
As long as he buys liquid domains for lower than the liquid rate... like 3Ls and dictionary words... there's much less risk imho, much less upkeep.
Him leaving domaining along with the founder of DAN just tells me that maybe htey know that domaining is starting to wind down.