I completely agree. What do you do when you have 3 37-cent coins? Theoretically, it wouldn't change much for the end-user if s/he was always trying to use the

I completely agree. What do you do when you have 3 37-cent coins? Theoretically, it wouldn't change much for the end-user if s/he was always trying to use the coins they already have (which probably doesn't happen that much). But for banks, stores and everything else, it would be a mess, because there's no easy way to put the coins in rolls of "easy" values of a round number of dollars.