Gold and silver are still hard money, just not legal tender anymore. Saving all three forms of money us still currently possible, and diversifies risk in a portfolio.
Discussion
Move 1 million dollars of gold to Japan or 30K of silver to the closest nation 3 borders away and tell me how great they are as money. Go ahead, tell me the real cost.
The hold outs for magic metal are a joke at this point. It has a place but it isn't as money.