There is certain type of hoarder, extremely rare fortunately, whose motivation is seemingly a desire to remove as much of a rarity from circulation as possible so that it gives them a sense of empowerment. They have no real collector's interest in their booty, and it is largely kept secretly and never sees the light of day. I know of Webley Mark 1 rifle, air-cane and BSA Military pattern hoards, going back as far as 40 years. Sadly, I unknowingly contributed one of my own Mark 1's many years ago.