I managed to sell my daughter's car by offering it at a lowish price with advert on the drive. Ideally I would trade-in as you often have to deal with some strange people. Again, lots of messages, "Is it still available?" then nothing more - they are probably testing the market. I am selling a trailer on Gumtree, which at the price, is a bargain. Again no takers. I no longer have a car with a tow bar. If I wanted a trailer, I would guarantee I would have to pay double for a similar one. If someone wants what you are selling they will pay the price. If not, then like you said, they are just chancers who want to make a quick buck.