Hi Bill,
I agree with you.
The ideal solution for playing the Piano, Organ and Synth sounds is to have a dual manual setup.
The lower manual can be the Roland RD-2000 EX with its superb Progressive Hammer Action (PHA-50) 88 weighted keys with escapement for playing the Piano voices that would satisfy a pianist.
The upper manual can be the Roland V-Combo VR-730 waterfall keybed with 73 semi-weighted keys optimized for playing the Organ and Synth voices.
The price of this combo would be $2,600 + $1900 = $4,500.
This is $500 more than the 88-key version of the Roland V-Stage Piano but is a smarter choice based on better usability and ergonomics.