Don't shoot?

[aasafetypilot]

A brand new member here - but been researching. I've spent years restoring valuable and (usually) rare antique vehicles. Every one was able to be driven, and in many cases, were driven to various concours shows. It was a judging requirement that the vehicles operate, in every aspect, as designed. I also have a number of not-so-rare, but fun, firearms that I shoot regularly.

I've been fascinated with Lugers for years, but never owned one. I've decided to take the plunge, probably with an excellent early S code Krieghoff. Simple question though - why all the recommendations against actually firing it? If treated gently and carefully, maintained properly, shot only rarely, and cleaned correctly, why the admonition that it "may lose thousands in value? My antique cars only retained values if used as designed (sparingly). Why not a firearm?

Thanks in advance!