"How many disillusioned US investors are there out there, finding that their carefully hoarded sheets of commemoratives are only good for discount postage?"
As a child, I found a number of USA 3 cent commemoratives, carefully stored between the pages of a book by my father. To me, they were just colorful stickers, and I proceeded to stick them all over the place. My father was furious. He was convinced that I had cost him a fourtan. I still take special pleasure in mailing him letters using stamps of those vintage. Because, as we all know, lot frequently sell on
ebay for LESS than face! Even though they are 70 years old by now.