Yes, and you are consistently inconsistent, so I can't argue with yours either.

But, I can answer your question, and I can only hope you are open-minded enough to see my point...if not, that's okay, too.

The ones buying the newer Yamaha keyboards are the ones who weren't happy with another manufacturer's product, as well as new clients just getting into arrangers.

Of course, some of the owners of older Yamaha arrangers will eventually upgrade to a new one, sometimes that will depend on how long they've had the instrument, any changes in their needs, and sometimes just for some new sounds and a taste of newer technology...it's the same way for other manufactures as well, including Roland and Korg, the former no longer in the high and mid-range brackets.

Ian