Unless you're stashing Gold or precious metals instead of cash, then you have the benefit of not losing the 2-5% that the feds are printing in money yearly. That's assuming you're in the US.
I totally get the argument for precious metals as a hedge and "insurance policy" against rampant runaway inflation, but don't you lose a lot more than 2-5% when you pay the premium over spot to buy it? Also, how useful/liquid are gold and silver in a serious economic downturn?
I have a roll of uncirculated bitcoin buried in the yard... :-)