I hope the $20 doesn’t set you back too much! I think you’re gonna really like it though. I already have about 77 hours of playtime, and most of that was before the recent ship-customization updates. I know early-access is a contentious subject, but the developers have been pretty steady with updates.
5 Euros seems like a pretty standard fee for a Bitcoin transfer, which is insanely cheap for large transfers. Your 30 Euro transaction is more suitable for the lightning network, which handles off-chain transactions for much lower fees. The person you were responding to was specifically talking about the lightning network.