Obviously, I agree. I think that pennies are unfortunate for the opportunity cost, among other things. I like them for nostalgia and wouldn't want them to die completely, but if they went the way of the $2 bill, that would be OK - rare novelties, not a bother for pricing.

I actually want people to use more $2 bills, they're quite lovely.

@phamilton, not sure I follow. You could just round up or down as needed?