I decided I would just host the oldest products on my own server to free up storage space for the newest products. This helps with the 500MB limit, but I ran into another stumbling block. There doesn't actually seem to be a way to
delete product files to free up space. Deleting the whole product listing is not an option because I really don't want to go back and manually change 20+ E-Junkie cart links after deleting old products and re-listing them.
So, is there any chance you can add a "delete product file" button to the product data entry page? It'd let me free up space for newer stuff.