This is something I deal with a lot. Just about 2 years ago I was at someone's house. They had 3 games. Cftbl, de starwars, wms indy Jones. I sold all the games to them almost 20 years ago.
I asked if they were interested in selling. She asked how much indy Jones was worth. I pulled my phone out and pulled up a 14,000 one hep had listed. I told her I would not give her 14k or even 7k. It's worth 3500 to me. I explained its sides were faded. Dot matrix was burned and needed a shop job with LEDs.
I also explained it's a business to me and I need to make money. Back then for me to get 7k I would need to redo side art, color dmd, new plastics, flippers, powder coat, etc.
She said she understood and wasn't looking to sell yet, but will call me. ( Think I will send a call her way today.)
Point is, I dont hide the crazy prices you see on ebay. I try to use them to my advantage.