I recently took 2 phones from my kids for them being morons. Posted their iPhone 8 Pluses for sale on FB, and left out NO details. Carrier, storage, condition, pictures, unlock status, what was included, etc. I also posted a screenshot of what places like Gazelle were offering (which was $475 at the time, which lets them know it's a guaranteed sale at $475) I posted them for $500 and still had people offering me $250, $350, etc. I had someone tell me they could give me $400 cash, and I told them $450 and it's yours, if you meet me in town. They showed up and pull out $400 cash. I got as far as saying "Are you FU-..." and they interrupted to say, "OK OK OK, Four Feeftee, here you go."
Thanks, Juan.