You could also eat it, and for their cost, you could trade off a bunch of them, and still have plenty of them left for the next hunt.
Dig around here -
http://ferfal.blogspot.com/ or just buy his book.
For that matter, unless it was taken down by request, most of his book was posted here, before he turned it into a book.
Gold is basically worthless in a major economic collapse, and junk gold will have the same value as the better stuff, while you'll need to find a big city exchange place if you want to barter bullion.
But things that allow for defense and hunting will be invaluable.
Gold is really nothing more than a bet against current currency forms, and for all we know, if things go far south, gold might have no value at all.