All depends what a person collects like me I enjoy shield cents errors doubled dies and anything related. It depends on the collector now I would pay a premium for toning bc it is cool looking and "rare" in some sorts. I needed up getting this for a steal of $50. A 2020 D MS67 is already around that price when it's not toned so I did good. It was a genuine post from a genuine collector who wanted it to go to someone at a honest price and that's how I am with collecting I like to give rather then take a huge amount of money for a coin. Ofc that opinion will change when dealing with different coins. Shield cents though if I've got 50 of a doubled die I'll just give them away. Market wise all depends toners have a good market but modern modern coins aren't really looked at yet (2010 and up). In 50 years the market will be booming for the shield cents I think.