You got me scratching my head on that choice Ernie.
I can do so much with my S950 and my Maui 5 PA. I can pretty much do any thing really with the two. I wouldn't even swap even for a Genos.
It is old but plan to hold on to it as long as possible or until the next SX9xx comes out. 2023 it will be 10 years old and that is my planned date to replace it. But for sure with all the knowledge I have at creating custom styles I would not leave the Yamaha brand. It would take forever to learn another Keyboard system and re-create over 400 custom song styles.
Best of luck with your new adventure.
Drake