Since the Technics 1000 I have bought every Technics up to the Kn7000, four Korg arrangers, three Yamaha arrangers, and now a Sx900. (Even had a Roland - wooow)
I was never disappointed because I expected small to medium advancements, if they put everything they have in the next keyboard, what can they sell next year. If they leave us like Technics. we would complain, and sing “IF ONLY THEY)

My second thought: There is so much in our keyboards, and my best bet is that most people never get to the full potential of their keyboards
ALL EXCEPT GARY. haaaaaa.

In the early days of computers, my advice was not to buy one you can learn in 2 months – or you will become bored.
John C.