I certainly think it is worth it, assuming it is in suitable condition, to the person that wants good bread and butter sounds. It was a great big band board, e.g. I had the KN5000 and KN7000 snd still miss my KN7000 sometimes, but time marches on. There are still some that play out with it right now.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact