Finally, people would buy new arrangers completely for the new features, and the new sounds. And Yamaha would speed up its' incremental policy of development. The WS crowd EXPECT innovation and groundbreaking new technology, each model increase. And don't buy one until there IS. It's only arranger players that are lazy or dumb enough to buy a brand new model for maybe 20 new styles and a couple of sounds.

Somehow, Yamaha manage (along with all the other WS manufacturers) to make a living without such a bullsh*t 'upgrade' policy. Each new WS model has brand new features and sounds (in addition to the legacy sounds).

Why ARE so many of us clamoring for what is new? Because arranger development has essentially stagnated, as new models really only add new styles. The more forward thinking of them are leaving arrangers for WS's that at least TRY to make a token effort at innovation. That isn't good for the form, I believe. Many are howling for a new model when they have had their current one for less than a year. The manufacturers need to make something that TRULY satisfies the user, and let the style makers make a living...
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An arranger is just a tool. What matters is what you build with it..!