This is terrible - the thing about cryptocurrency, as opposed to traditional investments (or just banks), is it's extremely rigid, which means if you misplace a digit, you can lose a lot of stuff. I would guess that you shouldn't really expect to get out much more, in traditional currency terms, than you put in, in traditional currency terms (and, stuck on Earth, what else is there). Imho cryptology has it's place in the privacy and security realm, so the real use case for playing with these things is as training to do work in that area (obviously feel free to disagree).