Another reason to end an item is to update a listing.

Over the past week I have changed all photos on all my listings (mainly to get better images). Unfortunately, I did some of them on Friday when EBay was doing maintenance and the photos did not update on My EBay or on See Other Listings. So on Saturday, I ended these through Selling Manager (no reason needed, by the way), and re-listed a short time later. Used up some of my Free Listings but certainly corrected the photos.