Once the economy collapses, will non-precious metal coins be worth anything? Think about all of the modern coin collectors out there? NGC and PCGS have plenty of collectors paying big bucks for high grade (MS70) modern coins for their registry sets.
Has there ever been a time in history where the government debased the coinage like today's governments have done with modern coinage since 1965? If so, what happened to that pretender coinage? Do people still collect it, or do people stick to gold, silver and copper?