I don't let it bother me. I concentrate on the skill set, not the tool kit.
So long as I have some guns well suited to my needs and abilities, it doesn't matter so much which ones they are. What I need is a gun I know how to run, chambered for something that will do the job at hand.
For example, I'm instantly comfortable handling any of the Smith Hand Ejector's numerous descendants, for it's a style of gun I've used and liked for a long time. I cannot own them all, of the many millions made, but then I do not need them all. They are in a sense interchangeable, for they work alike (of course there are nicer and worser examples). So I need not be concerned with keeping all I may acquire.
So long as I have a small assortment in various sizes, I have plenty. I didn't always think so, but then I shifted my thinking off of the tool set and onto the practical uses.