Ah yes, the ol' what is gold worth question...
donttreadonmebmg is on the right track in mentioning his preference for ammo.
You can possess enough gold to fill a truck bed, but if you lack a security plan, and the right tools, you won't possess your wealth for very long.
As for the "worth" of gold, or silver, or lead, or copper, or steel:
What is it worth to you, and what can you do with it?
If you can't figure out how to use a piece of gold to your advantage, then it is worthless.