3351,
Many of us are using arranger keyboard as our main work tool, and even in our studios. The old notion that "professional" gear has no speakers, is on it's way out.
I also do alot of professional recordings...with very modest gear. I have been doing this for well over 25 years, and I have fround that ANY tool that makes the job easier, belongs in my setup.
You should review and test some of the newer auto boards out there. They may surprise you, as well as the users that are making theire (OUR) living using these keyboards every night.

It's the player that makes it "pro"...not the gear.