I used to list my old DVDs and post in C5 sized envelopes (no tracking), not to make a profit, but merely just to clear my bookshelf and make room for new titles.

Sell a few at $5 or $6, and after fees and postage that will pay for another new movie/tv show for me.

However, since everyhting seems to be moving towards tracking, I have decided it is not worthwhile risking a defect, and hence are donating all my old discs to the Salvos.

Good for the charity shop, and I'm guessing the small amount of fees lost by eBay won't be missed.