This is why we buy PM's.

[barsenault]

"Although gold and silver are not by nature money, money is by nature gold and silver." - Karl Marx ...

Source:

 

[BeHereNow]

Yes, but how do we all buy the PM?
Why, with money - and that money is not gold and silver, rather fiat.

A catch 22.
Gold and silver are not able to buy things.
They are bought and sold, but cannot buy.

 

[Pirocco]

Yet, after centuries, they still serve as inbetween step to buying. It doesn't really matter whether the finalization of a trade occurs in one, or two steps, especially if these occur a limited amount times in a timeframe.