Sometimes, you have to make investments for the "maybes" in life.
1. Unlike farmers' hedging with commodity futures or some such, P(USD hyperinflation) is either retardedly low -- if all factual evidence currently available is any indication -- or otherwise utterly opaque (the probabilities facing farmers are uncertain as well, but a wealth of experience at least indicates rough estimates of crop failures and the like). In either instance it's hard to see how hedging against it is any more rational than hedging against a meteor strike, i.e., it is hard to see how it is rational at all.
2.
Even if P(USD hyperinflation) were 100%, it isn't clear that shiny hunks of metal would be of much use. Contrary to crackpot opinion, gold has never been a good inflation hedge (vhttp://papers.ssrn.com/sol3/papers.cfm?abstract_id=2078535); why would it suddenly start functioning as such?
So, P(USD hyperinflation) is retardedly low or otherwise opaque and gold has never been a good inflation hedge, yet is rather expensive (way above historical average) to buy into, incurring significant opportunity costs. I'm confident that this outweighs doomsday prescriptions from crackpots and googly-eyed kneegars (see the Industry board) trying to profit from gold bug ignorance.