Being shooting isn't cheap, unless you shoot 22's, which I don't, I usually wonder why I bought another gun. As I get older I cut down to 5, and my AR, most are 45 and 9mm, I tend to have always favored those 2 for 5 decades. The difference between handguns once you get to 9mm isn't that big a deal.
I started to look at long guns instead. But in a suburban setting, how many can you use? If I am not using something, no matter how nice it looks, I don't need it. And having no sons myself, I have no legacy to hand them down to, so I am at status quo. I still make excuses for getting something new, but now it' more a replacement that an addition. For example maybe get rid of my fullsize 1911, and get a commander with a scandium frame, so I can carry it.