A case in point. About ten or twelve years ago, I was shopping in the Salvation Army thrift store here in Idaho Falls, when there before me was an absolutely unblemished Eighth Air Force airman's uniform, complete with jacket, wool shirt, and trousers. Its original owner was a sergeant in the Eighth, stationed in England, and had the overseas bars to prove it. His name was Newcomb. This pristine uniform was stored for fifty years and then presumably thrown in with the other clothes after the passing of this veteran. I've never been able to trace him or his family. This entire 8th Army Air Corps uniform--coat, patches, shirt with patches, and trousers, cost five dollars.
These items belong in museums, not in the hands of collectors. I use my items frequently for teaching and display. When I can no longer use them to teach about the air war, they will go to a museum, but they will never be sold to collectors. These items are priceless.
If you have a veteran relative, make sure that arrangements are made to keep their treasures in the family or get them to someone who will use them for education and public display.