All joysticks right now are scarce. Hori joysticks have always been hard to come by. They had them at my local frys at one point, but once HDR came out, thats when joystick sales started to go crazy. Then SF4 and DAMN!!!!
Anyway good luck on your sale. I sold my EX2 that was used for 80 bucks so I think you should be able to get the same price.
Free Bump