[kiba]

Gold doesn't corrode, easily divisible, is portable are just many reasons why gold has been the money of choice.

In the desert, salt is worth more than gold.

Other part of the world, they use cows.

Like you say, it all depend on the circumstances, how much gold there is. However, gold has continued to be the money of choice for civilizations for thousand of years. It withstood the test of time and to this day continued to be regarded as a valuable commodity.

Ultimately, the value of gold is a subjective one.