The way I got into it was people offered to pay me in bitcoin, clients, including internet clients. Since it was irreversible, I just said, sure. That's the reason I accepted it in the beginning, because with internet clients an irreversible form of payment to me sounded appealing. They kept paying me, going back over 8 years now, and I just kept holding it. I still accept it and don't sell it. If I'd accepted cash all along the way, assuming I saved the cash and didn't spend it, still the total sum of the cash received would be FAR less than the value of the BTC is now.
I still believe in it long term, and most every day, or every few days anyway, another client wants to pay me in BTC, and I say, bring 'em!