There has been many years of debate over what to do with the lowly penny.
As our money was debased through excessive printing, with nothing to back it other than guns, the copper content of the penny became more valuable than the face value. People worried that all prices would be rounded up to the next nickel. Merchants felt cents were too bulky for their trouble.
clue ... *cough* fearless leaders switched from copper to zinc. Well, the debate need rage no more because now even the cheapie zinc cents are worth more at the smelters than at the bank. People who can smell a trend will no longer spend cent coins. My guess is that a market for "bags" of pennies (based on year minted) will emerge like the market for "bags" of pre-1965 Ag coins.