Apply a little heat to your coins, and presto, they're jewelry and exempt. After the dollar devaluation, your savings would have been intact, while everyone else's savings lost significant purchasing power.
In 1910, 20 troy oz. would buy a new car. Still does, today. Had you obeyed the 1934 dictate, the paper receipts ($20 bills) you received in exchange wouldn't buy much more than the front bumper today.