I have been working on "streamlining" my inventory for most of my shooting life, which spans four decades. I am not a collector, but at times I kind of Jekyll-and-Hyde back and forth between shooter and collector. But at heart, I'm a shooter.
In the 80's I built what would now be considered an impressive collection of American double action revolvers, all Colt and S&W. It wasn't that I was a genius (as you will see), it's just that at time that's what was for sale in the gun shops and in the private market. Reloading, bullet casting, I was heavily involved.
As it turned out a couple of years later, too involved. I got married, Had kids. I was fortunate that I didn't have a money problem, but I did have a huge time problem. It bugged the hell out of me...them just sitting there. I sold 80% of them just because I couldn't use them.
Over the next decade and a half I continued to shoot but stuck with mostly .22 with some .38. Then it happened, the kids grew up and left, the wife decide to go to grad school, and I took it back up in earnest. Since then the inventory has gone up and down, and is just now stabilizing, where the comings and goings are less frequent.
I have come to some conclusions. If you're a collector at heart, buy away...it matters not. But if you are really a shooter it will drive you crazy having too many guns to shoot. How often do you shoot? If you have 52 guns, you'll get to shoot them once a year if you shoot weekly. That doesn't work for me. They are all so different, even ones that are seemingly extremely similar. Every gun I've owned has had it's own personality.
I have found you can't really shoot more than six to eight. Granted I have maybe twice that, but the gross number includes some sentimental items, a house gun, and some others that should more likely be classified as experimental or curiosity which are likely temporary. Perhaps they will make it into the shooting rotation, if they do then something in it now shall have to go.