[betwixthewires]

> But why would you want to sell a house this way instead for a permitted means of payment?

I can think of a few reasons. The buyer offers you a large premium, you know people who can help you offload the currency, you have no interest in keeping your capital in a controlled environment, maybe you're selling your house because you're leaving a country and taking bitcoin or whatever is the easiest way to take your capital with you.