Impact Of Toning, Hazing, And Discoloration On Slabbed Coin Values

Differences in eye appeal can always alter the ease or final selling price of a coin. Negative effects like haze or discoloration can often detract from the selling price as they reduce the eye appeal of a piece, and that is a major factor guiding selling price. That said, some people buy the slab not the coin, and some people are looking for a coin with a certain amount of detail remaining, and don't care about the colors.

Toning can be a mixed bag, some people love it and pay more for attractive toning. Some people are happy either way. Some people won't buy toned coins. Toning, if not especially attractive or unattractive, can make for a harder sell as you need to find the right buyer, though it shouldn't reduce your final selling price.

Maybe a bit more difficult to sell, but should not decrease the value unless they are higher value rarities, or what should be blast white proofs.

Should have no value effect on strictly bullion coins.

Higher value rarities are more likely to be tolerated with imperfections. Strictly bullion coins, it does not matter much if you have them as "bullion" pieces only,the value is in the metal content. If you "collect" bullion then condition does matter.
John1