To be honest, I haven't made any purchases with Bitcoin yet. But I have the intention to make purchases, for example, if I want, I can buy various software subscriptions with Bitcoin. And what you said about the increase in the price of Bitcoin, yes, your friends probably didn't know before that the price of Bitcoin would increase so much, so they paid you through Bitcoin. Maybe they didn't have a place to spend it, so they paid you. When they realized that the future of Bitcoin is very strong, they stopped paying you in Bitcoin and started paying you in fiat currency. Honestly, if I were your friend, I would have done the same thing.