It depends on the purchase price and how much that you don't mind paying for the privilege.
I look at it this way. Since we can't take any gun beyond our grave, the difference between its purchase price and its sale price can be considered to be the gun's rental fee.
Guns collected during a lifetime often end up being sold at estate auctions either below market value or with little return after the hefty auction fees are deducted from the final selling price.
Yet few people get to enjoy actually firing the gun that they purchased.
On the other hand, there is an immense amount of enjoyment to simply being able to admire and fondle a collectible unfired gun. So either way it's up to the individual whether they would obtain more enjoyment by firing it or by simply appreciating it for it's beauty and craftsmanship.
If a person already has a Walker to shoot with then why fire it?
But if a person doesn't already have a Walker to shoot then why not shoot one of the best if they're willing to accept the devaluation.
Maybe some guns are only meant to be kept unfired until some future owner decides to shoot it?
That decision is passed on with ownership since a gun can be only be fired for the first time once.
I think that most owners do challenge themselves often about shooting such a mint gun by asking whether now is right time or not. That's one of the great rewards of ownership, but it's also a burden.
It's like that saying, "No pain, no gain!".