ATM we will mainly use it that way, a contender of gold's position.
Well "someone" just hours ago bought a brand new Lambo with BTC. So was BTC a currency there or a store of value?
The important thing is actually Bitcoin "can" be used as a currency, it doesn't have to be practical to use it, just the potential is enough. Much like an opposition party which gets votes but never enough to get elected can put the ruling party's power in check.
Then people have to spend bitcoins once in a while to send those in charge a message, however inconvenient such spending may be.
Gold had such power, but after USG managed to wrestle control of the majority of gold reserve within the U.S it is no more, and gold is confiscatable.
In this case it was very practical, e-mail plus BTC = new lambo in my drive way in a few days. I never even had to leave the basement.
To me BTC can be a good store of value but it is really a currency.
We are in this interesting scenario mostly due to banks' slowpokish dinosaur reaction to Bitcoin. They throttle the flow of fiats in/out of the market, so nobody can practically "cash out" and get his newly earned fiats into any other payment system to pay for the luxury goods they want to buy. But Bitcoin will find a way to get in and kick their asses, so the merchants are there to help you to move the money
