I think Mick is right. Having mint or near mint examples of a model is a recipe for having at least two of the same one!
Partly through a shortage of funds and lack of opportunity, I have only rarely bought what I would call a 'mint' example and it's more or less where it was just after I bought it, unfired and in the same packaging it arrive in.
Where I have a superb original example of a gun, I always have an alternative, less good example, in case I get the chance to shoot.
It depends why you collect - to amass and preserve for future generations, or to have a 'working collection' that you use regularly. Most collectors I know have examples of both - and to my mind both motivations are just as respectable.
Cue the 'what's the point of having it if you can't shoot it?' brigade...