Yes but that’s dishonest.
I’ve had no problems selling anything yet either. Usually goes within 6 hours here at a well inflated price.
I bought an iPhone 12 December 2019 and decided to swap it out for a 13 pro a couple of weeks back for the camera improvements. Apple accidentally refunded the entire AppleCare cost and I sold it for £190 less than I paid for it. So TCO was £16 a month.