I cash in my clad change at the end of the calendar year. Usually have a few hundred dollars worth. All the other stuff, no. The thought of a silver coin being melted down disgusts me, so I keep them. Artifacts go in my display cases/cash registers and get shown to visitors.
The way I see it, one day maybe I will NEED to sell them and if that day comes, I'll be glad to have saved it all over the years