Ummm, it's used. Yeah people expect to pay less - a lot less. If you are asking close to new price, why would they bother? They can pick from stock on hand or get built to order for not much more...with a warranty... If they are looking at used items, it is to SAVE MONEY. Not sure where you are at on your price, but if you won't knock at least 20% off new, then you will not even get a response, other than a low-baller. I hear a lot of people say 50% for used stuff is a good target. IME, that is not far off.
So good luck, but reality does not care if you take a loss or not. Just what people are willing to pay.