I used to years ago but then that was back when we could leave our doors unlocked and nobody would ever bother a thing. I collected for 50 years and after retirement, I sold off most of my collection. Now, I do have my CCW handguns and some others but they remain under lock and key. It's a shame but with the way things are today, I personally just feel it's an invitation to have them stolen.
We live in the country near a small town and have for 45 years. Last summer, while my wife was shopping, I was in the basement doing some reloading and the dogs started barking. I came up to find a man and a woman parked right up by our garage door - one at the front door and one at the back door. I went to the door to see what they wanted and they were taken by surprise that anyone was home. Basically, I spooked them and they left. Had I not been three, they would have broken in. lTwo days later, I saw them again.
Their pictures were in the local paper - both were heroin addicts and they had been arrested for a series of break ins and thefts of guns. jewelry and anything else they could fence to support their habit.
I usually CCW if I am out and about. Now, if I'm home alone, I have my handgun on me at all times - even if the wife is around and I'm out working in our yard or in the fields. No .. . . . I'm not paranoid . . . . but I am much more cautious that I used to be. Even in years past when i did have some of my collection on display or either guns or antique military items . . . . I had several of what I considered "close friends" who couldn't keep their mouths shut about what they saw and it got back to me when strangers to me would ask me about my interest in guns, military items. etc.
As the old saying goes . . . "loose lips sinks ships".