[jbaczuk]

You're right, currently the volatility and deflationary aspect does incentivize its use more as an investment than a currency, but there are some unique aspects which make it more desirable as a currency. For example,

No foreign exchange required. It is decentralized so no need to exchange it with any 3rd party.

Flat transaction fees. You can transfer $1B of value to anyone in the world for a buck. How else would you do that?

Theft protection. It's as safe as you want to keep your private key, you can even use multisig to get other people involved.

Privacy. There are many methods to make it anonymous, untraceable so others don't know you own it, how much you own, or what you spend it on.