"Too many guns."
It is not always a good idea to take so many guns out at a time, especially in some areas. Bad guys have been known to hang out at ranges looking for folks with a lot of guns; they then get the license number of the car, use it to find the owners' address, and come calling.
Sure, I know "I can deal with home invaders, bring them on" line, but it is a lot better to not excite things in the first place. Worse, a large number of guns in some areas will attract police attention, and we have too many overzealous cops who think anyone who owns guns is either a cop or a criminal, and that is not good either.
Jim