I have a pair of SNK Rotaries I would sell for $75 + shipping.
Both joysticks turn/click nicely and are clean. One joystick is missing the dust washer. Both joysticks came with the wires which connect to the joystick. One connector looks like the normal molex connector and the other looks like it is from a harddrive connector. I never used them so they will be an AS IS sale. I simply bought them a long time ago and they have been in the same shipping box ever since. In fact, if you did not mention "SNK rotary" I would have forgotten I had them.
Send me a PM if you are interested and you can pay me via PayPal