I think the best use for BTC is to transfer great quantities of money from one distant place to another in seconds. BUT there also another great use for bitcoin and its store of value, it is the digital gold, as bitcoin is getting harder to mine you can use it to save money because mathematically bitcoin is going to be worth more and more, if its not by the demand it will be because of the short supply.
Not only just transferring a great amount of money quickly from one place to another. I believe Bitcoin can help the community by providing several earning opportunities, which is the reason most of us are into Bitcoin. If not for money, what else are we here to do? To play game and jokes? Nope.