Known and unchangeable really is the key thing. And also unusually scarce. Monero, Bitcoin, and DOGEcojn of all things, all have this in their favor.

Kanzan, it is annoying when you try to accuse the other person of not standing on true principles, with every damn interaction, just because they are profiting from increasing marketability of the money they hold, which you are also doing. It's a pretty obviously dishonest tactic.