As I said before we all have a different taste...
I also had a Yamaha psr8000.9000.9000pro
psr2000,solton sd1,rolandxp30,technics 6000,technics6500 and now a technics kn7000.
All the pro keyboards are good..
Some voices sound better in a Yamaha and other voices sound better in a Technics,solton...
When will they invent a keyboard that has everything....never.....and that lasts for several years...