I bought an Orla KX10 because it is the only configuration of buttons and keys in keyboard form out there. Several back and neck surgeries necessitate this. Ketron makes a chromatic keyboard (Audya 8) and has in the past (XD8, SD8). I have asked if they have considered the button/key configuration and they simply said it is not in there plans. Musictech makes the kits that can be installed on a Yamaha Tyros or Ketron product , but again in chromatic configuration. They have recently told me that they have thought about offering the button/keyboard kit many times but there is no market for it. I have to wonder if there is actually any market research to back this up- I would think there are just as many if not more piano accordion players than chromatic accordion players out there that would welcome this. Any opinions/takers on this, or are they right?