Had the S-series had a 76-key board I might have been interested. I sold my PSR2000 and considered a 3k, but opted for the behemoth G70 becuase of the features and reduced price. Yes, the 3k and S900 are much cheaper, but a 76-key board is worth so much, especially once you use one. The S900 just hasn't caught my interest; a 3k might still interest me more.