Many Pocketed Cargo Shorts

These shorts don't hold much for me, but they are my husbands all time favorite shorts...I remember buying these when I worked at the Gap for like, 4.99, and he was so excited. They are full of holes, and getting close to unwearable, but he refuses to part with them. I still wonder what makes us hang on to stuff that is totally unusable, unwearable. Is it really just memories? Is that enough to make humans keep closets full of clothing we'll never wear again?