[tehbeard]

Land, Gold and Bitcoins are all commodities.

I don't have to care which specific instance of them I have (mostly, land is where it gets funny but that's more secondary effects like transport hubs, taxation, regulations etc at which point it's not "land" it's a location I'm after).

A domain name? It's a unique registration on a global index. It's value is in that uniqueness.

[Black101]

If land isn't unique, can I have a piece of land exactly like yours (in the same location)?

[notriddle]

Tell that to the farming industry.

(Yeah, I know it’s not central to your point.)