[Snapolit1]

How much does putting a card in a case prevent it from further deteriorating over time? We've all seen graded cards like Exhibits with browning on the edges or other stains. Was that browning/stains there when the card was encapsulated 10 + year ago? Can that condition get worse over time?

Realize I'm not being entirely clear here. Just wondering if there are issues with cards that will get worse over time regardless of which company put it in a holder. Are there people selling cards because they know the card is deteriorating in its holder for some reason?

(Not talking about new water damage, etc., but some problem with the card just getting worse.)