It's a tough call. Listing fees help to weed out lower quality items or items that won't sell. I know when we have some items that just bomb and never pick up any likes, views, or sales, I eventually stop renewing the listing, whereas in Artfire with just a monthly subscription fee, I will leave everything listing indefinitely. Having to pay to list is a sort of quality control and forces strategy. Sure a single item is only $.20, but if you have enough of them, then it does add up.
On the other side of the argument, a list until it sells could be a great option for highly specific items that require a long time to find the right buyer. There are great vintage and antiques that are just so odd or out there, it takes a special collector to appreciate them.