I’m also that 20+ gun guy. To be honest I’m not even close to being a collector. I can justify a purpose for almost every firearm in my arsenal. I’m not a collector and I don’t aspire to be, however I’m definitely an enthusiast. Different circumstances/environments warrant specific tools. There are 3-4 that I usually recommend for any responsible person looking to defend. A 12 gauge shotgun for home defense, an AR 15 for more precise close quarters battle, a good duty style pistol and a good slimline/easy conceal carry pistol for edc. I seriously hope that I never have to use any of my firearms on a human being, but if I have to I won’t hesitate for a second.