Well bitcoins main source of value is scarcity so it's not much different than gold. They both have some limited utility - blockchain has some utility in making payment transaction more efficient and gold has some utility in industrial uses. They aren't that different, it's just that gold is more established.

__________________
“I’ve known Jeff for fifteen years. Terrific guy, He’s a lot of fun to be with. It is even said that he likes beautiful women as much as I do, and many of them are on the younger side. No doubt about it — Jeffrey enjoys his social life.” - donald trump Source