Personally, and by no means am I a bitcoin-enthusiast, there's a lot of value to be had by something that allows relatively frictionless international money transfer. I realize that's not necessarily a feature of blockchains, though it is a feature of cryptocurrencies (for now, at least).

We had a friend who lives in a commonwealth country working for us as a contractor, and figuring out how to pay them was a pretty big PITA. I was really close to just paying them in bitcoin, because it was that much of a hassle.

Ultimately I was too afraid of any potential tax/legal implications to follow through on that, and we ended up just using TransferWise instead. Still, it was that much of a pain.