I used to have 9000pro.The best key feel of any synth,arranger or workstation plus two PLG boards expanded.The keys come from my favorite Yamaha workstation that is worth mentioning, EX5.I used to have it and still miss it sometimes.
And I agree , still the same drums now and then.
But 9000pro was good arranger.I have to say you couldn't do much on keyboard itself if you wanted to do some in-depth editing.Too bad Tyros doesn't use keys from 9000pro.On that note 9000 keys are horrible.