The title of my topic doesn't really cover what I want to know. I was hoping people might give me some advice/answers for a few questions?
1. I have read and heard many times that the plastics we keep our coins in---whether they be in mint sets, 2x2s, plastic sleeves with pockets---can be, and often are over time, detrimental to the preservation of our coins. How much truth is there in this? Are some plastics worse than others?
2. Are coins in mint sets better safe-guarded if removed and stored in other ways?
3. How is the value of a coin changed if removed from a set or pnc?
Thanks in advance to those who offer their thoughts.