User or collector?
I envy the guy who picks a good rifle or handgun then stays with it. I wish I was that way. However I am Not. I have always had to try everything. I have traded and sold more rifles and pistols than I could ever list. Buy One try it out, work up loads then trade it off and start over.
There are some caibers that I have always had to be sure that I have on hand but I have even traded them around a lot. I always have to have a 270, 308, 223, 22 RF, 12 Ga., 44 Mag, 45 ACP and of course, a 45-70.
Are you a stay with it hunter or a try everything hunter. Or better yet, some place in between.