The type of arranger module I am talking about is not for accordion or guitar players but for keyboard players.
And, the point of making an arranger module is not to make it the same size as its keyboard counterpart.
I know Ketron and Gem make arranger modules and they would say they do not sell and that is because they made it wrong.

You can not make it big and bulky and you can not make it almost the same size as a keyboard. And, you can not charge the same price you would a keyboard.
I am sorry but the arranger modules that are out there are not for keyboard players.

If people are saying that arranger modules would not sell then they are saying that arrangers would not sell.

The key to an arranger module would be how you market it.

With an arranger module, you can reach more people than you could with an arranger keyboard.

If Roland and Korg can not sell arranger modules (which would be an item that would be an addition rather than a replacement to someone’s rig), why do they think they would be able to sell more arranger keyboards (when they are asking persons to replace a major item in their rig)?

Remember arrangers are much more accepted now than they were years ago. Roland and Korg had arranger modules back in the day. They saw the value of having a module; it was just that arrangers were not accepted at that time.

But from talking with some manufacturers about arranger modules, they use the argument that Yamaha uses when we ask Yamaha for a 76 key arranger (the 9000 story).
Contrary to what some people believe, the reason for not having an arranger module is not that it will cost a lot to make it but that manufacturers are afraid to make it.