Apart from:

- Its usage in black markets, like drugs and weapons.

- Its usage as a speculative commodity.

- Its usage as a hedge against hyperinflation.

Those are current uses - and any one of them could grow much bigger. Conceivably, a government may end up creating a new black market traded in bitcoin, which might then propel it to mainstream adoption.

Footnotes: Drugs are bad; don't do drugs. Guns kill people. Don't sell your house for Bitcoins. Etc.

And you can create unlimited forks of it, which is kinda hard with gold.

For me this makes the real value zero, but I am already proven wrong for more then 10 years.

I am not convinced that Bitcoin is all that, but the usefulness of gold is also rather limited. Silver and platinum are much more important for technical applications, as opposed to looking nice. If it was about usefulness, platinum would have long replaced gold for the purpose of storing value.

This is also a great feature that makes it exactly like gold. But unlike gold, you don't need to dig a hole in the ground, put it there and have people guard it. You just need enough electricity to run it.

Few consumptive uses is actually a positive for a monetary system.