I like closure. Completeness. I don’t collect many things because my urge to acquire one of each available item is very, very strong. And I know now how counterproductive that urge can be.
When I first became interested in expanding my wardrobe, I was rather obsessive about slowly gathering one of each. And by “each” I don’t really mean every possible garment, shoe, and accessory. It was mostly limited to basics. If I was going to bother with dress pants, I might as well have a black pair, and brown pair, and a gray pair. Come to think of it, that triad covered most of my “one of each” tendencies: Black, brown, and gray skirts, pumps, boots, blazers, tees, etc. And I never put myself in financial risk by amassing these items, but I did spend quite a bit of money acquiring them over the years.