[Sorgam]

Gold is about 20g/cm^3, and although it sounds expensive, there's a lot of gold just sitting in storage. Why not store it underground here instead? This is in contrast to tungsten which has direct commercial value and would be wasted just being stored.

[gus_massa]

You have to add the cost of the armed guards, because a big block of gold will be a nice target of a robbery.

[pm90]

Well, yes. To be fair, if there was like a farm of these devices, it might makes sense to swallow that expense.

I wish gold wasn't so rare! Its such an amazing material, and our economy is not based on precious materials anymore (except the commodity markets or course), so it seems like a really sad thing that we can't have more abundant gold just yet