I am also amazed by the resistance to change here as there is a system clearly more efficient and transparent. It's just a matter of time in my opinion. BTW you can remove the (nearly) in "(nearly) costless", some solutions provide 0 fees and no inflation.
By more efficient you mean taking hours to settle? And no inflation as in Bitcoin level volatility and up?
I'd love an efficient and cheap option to move funds online - especially for micro payments too. But so far I haven't heard of any crypto option that actually stayed around long enough to prove these things.
Happy to be pointed in the right direction here.