Ask yourself, are you going to feel more warm and fuzzy if you keep it in a safe for life, die, and let someone else be the curator, or would you enjoy it more if you lived only once, and carried it often, if not only to annoy the collectors?
They're great guns...not all that valuable.
The first round you fire will cost way more than just the cartridge
Keep it unfired but lose the holster. That will dick it up pretty quickly.