The prices of Exx series cameras vary greatly as the demand fluctuates. Sadly a non working camera will normally be significantly cheaper as there are not that many people able to repair them. All I can say is that someone who needs a better casing, better condition LCD screen, better condition Lens or specific spare parts like the side port covers, will often pay good money for even a non working camera. As an example of spare part costs, I wanted a pair of side doors for my E40bx from FLIR and was quoted $145 each plus shipping and taxes ! And that was trade rates ! FLIR spare parts are hard to obtain and very expensive. Sometimes a faulty camera is worth more as parts than it is as a complete, but non working, camera. Your best chance of achieving the highest return on the unit is to place it on eBay with a sensible start price to avoid it selling too cheaply. You can always lower the price later of allow offers on it so that people can discuss the price.
The price of working Exx series cameras appears to have increased considerably since I bought mine. Some potential buyers may fancy their chances of buying a faulty unit relatively cheaply in the hope of repairing it. That is what I used to do and I only failed to repair such a purchase on a very small number of occasions so it worked for me
If the camera came with accessories like the charger, additional batteries, desk charging dock or additional lenses, there is more money to be made from their sale.
Much depends upon how much money you have invested in the camera.
Fraser