Organ players and arranger players should not be compared. Feet going, left hand one thought, right hand another; and they are changing sounds. Before registrations they made all their manually. Wow!
When I first start going to the organ concerts in Orlando, Florida, I fell in love with the organ. I bought a used Wersi Delta 500 organ. This was my dream, it never happened, I was not willing to put in the time to learn --- I had to earn a living.
I bought a Yamaha Psr ???? and added a synth keyboard. The Yamaha was the master.
With all that behind me I am excited to have a arranger keyboard with all the buttons. Those buttons help me select everything I desire/need. I would hate to hear what I would sound like without them; I would have to call up talent which I do not have. (smile)
Just my opinion, John C.