Collectors and others of similar nature aside, I tend to wonder if this is going to lead to problems in the future?

I'm not anti-gun by a long shot (no pun intended), but pictures I have seen of some of these "collections" are staggering (like, enough guns and ammo to arm a small platoon of people).

In many cases they aren't displayed as a collection, but closer to a weapons cache in waiting...for what kind of situation I don't know.