FWIW, I’m not the world’s best haggler and actually hate the process but...the last couple of big purchases that I really settled on THAT is exactly what I’m looking for? I simply said, don’t know about you but I’ve never sold anything for what I was asking, you are probably the same, what is the real number you are willing to accept? I was very comfortable with the answer and pulled the trigger. Probably a ball park starter point is around the average retail +/-.
The problem we had with our last camper purchase is we wanted a model that had been discontinued for a couple years. And it was for a short bed, which narrowed availability. It wasn’t like there were a ton of them out there used. All has to be taken in to consideration. Good luck!