I still have my Ensoniq TS-10 which, by factory default, has about 16 different variations on the Rhodes theme. Deeper phasing, faster, slower.... Rhodes is still a great sound. Garage Band actually has an electric piano sound that is close. Wurlitzer had it's own unique sound as well. So I guess to be charitable, we can say that the DX7 went for a specific unique piano sound of it's own. It was done to death, but it was unique.