Even though they may look like they are in great condition, some small parts (like mirrors or wipers) are often missing or broken. These missing or broken items can greatly diminish the value. Boxes can also be very important and the condition of the box also. Ebay is a decent source for pricing, but I have seen the prices for the same item vary widely for some reason. right buyers at the right time plays a big part in the overall success of the sale.