Sure, it's a nice trinket to have laying around. But, when one is minimizing possessions, those types of reminders are used for "gifting". So? Mine is already in the hands of a nephew who dreams of owning a motorized bike bigger than a scooter some day. The key went with a photo of him on my bike. I think he remembered the ride he had - it was "cold" for him... however - now he can add it to his growing collection of trinkets from his journeys and his aunties...
Hope to take him on a ride some day - may be on my bike, or another.
Really don't care if I had the key or not... no matter what metal it was cast from. Heard it had a coating on it, though.
The emblems on the bike are what some people look for - which say 100th.