There is a lot of weird lore around precious metal bullion. Much of it seems to stem from attempts to make the pieces "numismatic" or collectible in the classic sense of coin collecting or to appeal to the "magpie" (stacker) who likes to pile stuff up to look at his "stack" and fondle and stare at various pieces.
One of these is the ill-fated "Star Privy" American Silver Eagle:
Just on the face of it, it's a 2024 Silver Eagle. But at the lower-right a "W" and 5-pointed star have been struck. Coin collectors call these "privy marks."
If you are using ASEs as a liquid 1 ounce unit of silver you can readily sell back this shouldn't matter. But there are minor issues. These were struck at the Philadelphia Mint, unlike most ASEs. Philadelphia is a production mint that makes the common coins for circulation.
Dies aren't changed as often there, so later runs may suffer loss of engraving relief. Coins are handled more roughly because Philadelphia is set up for harder alloy coins than the fine silver ASE. So dinged edges, scuffs, etc. are far more likely. Perhaps worst, minting lubricants aren't cleaned as thoroughly, which can create a form of chemical discoloration collectors call "milkspotting." This isn't tarnish, but some other chemical discoloration that appears whitish in streaks, blobs, or speckles. It may not even show when the coin is new, only "developing" on the surface a year or more later.
A lot of Canadian Silver Maple Leaf coins also have the milkspotting issue, as do other silver products.
Because of this, with silver around $50/ounce you might pay a couple of bucks less on premium than for the standard ASE.
However dings, scratches, and milkspotting may mean on resale a local coin shop might only buy back your 2024-P Star Privy as a "cull condition" coin, paying you a couple of bucks less.