Current transactions are no where near 90% plastic!! As for me in a very rural area probably 70% of transactions are still in cash and we get a discount for using it.
As far as the Cent goes it really does need to go away!!
I went to a local auction that had some silver two weeks ago. They had 4 10 ounce bars (2 Poured 2 stamped) some bullion silver eagles and misc. other silver. I found out very fast that I should have saved my time and gas.
The 10 ounce bars were auctioned at 1 and take how many you want. The first one went for $400 and the winner took one and did not care which one. The rest went for $350.
Then the 2018 Bullion Eagles were offered at 1 and take what you want. They went for $65 and the bidder took all of them!!
I found out very quickly that I had too much sense to be there so I left.