I always looked at it as Pokemon cards. Because it's unique you can track it's history and that opens up for a whole slew of new interesting services.

Ebook's could increase in price when sold second hand (owned by such and such), an open source gaming asset exchange allowing people to buy and sell no matter the game.

Basically it crypto creates physical like scarcity in an otherwise abundant digital space.

That's the biggest deal about crypto IMO.