That would no doubt be an interesting exercise. For example, I would find that I like a heavier rifle now than I did a decade ago. To me, though, it makes most sense to have/take with me what I prefer at the time. If my needs change in some way at some future time, then I have the option to change what I have or take with me at that time. To have what I don't want, nor like, nor shoot as well now, just in case I change my mind a decade or more into the future, doesn't make any sense to me.