I am enjoying reading articles like this since Bitcoin was $300. There will still be skeptics when Bitcoin will be $100,000 or more, I am certain of that.
Every buyers including me just try to make some USD from something that claims to replace USD...
I am spending bitcoins with BTC-linked debit cards (and earn half of my income in crypto). Living in the future, perhaps. :)
Or perhaps you're trying to obtain goods and services commonly denoted in USD, but believe USD is depreciating against BTC so until purchase, sell your USD.