Foolish thinking if one can't not use them with out being subject to confiscation they are worth less.
How long are you going to keep the buried when are you going to dig them up if you die who is going to find them.
If confiscation comes it is time to use them instead of hiding them.
Having some hidden away so one does not lose all of them at one time is a good idea.
But thinking you can store them until the bad times are gone is foolish thinking.
--and I recall seeing a few years ago a quote from one of the nationally known gun grabbers that a "buried" gun would nearly serve the same purpose as confiscation---