First, currency is mostly used as a medium of exchange. If you are worried about devaluation, then don't sit on it. Exchange it for something else. Anything. That's easy.
And it's usually better to hold some kind of currency which can be exchanged all over the world, than Magic Monopoly Money.
It's even easier to hold the currency, but unfortunately you can't because its value is reduced by others. You are pretty much forced to do these "easy" things, I'd rather not have anything to do with it until I actually want to.
