This is the apple that upsets the cart... You can't keep constantly asserting that there IS no market, there never WAS a market, there will never BE a market for a 76 Yamaha.
Remember, 'Yamaha can do no wrong'... The FACT that Yamaha produced this keyboard demonstrates one of two things...
Either there IS a market for the product - there is NO WAY the infallible Yamaha would produce this expensive beast if it had not researched the market exhaustively (shame they didn't consult Ian, who could have told them what a mistake it would be... oops, I forgot, Ian would assume that because Yamaha were doing it, it MUST be OK!), and come to the conclusion the demand actually WAS there. Hey, maybe they conducted a POLL?! But the FACT they produced it shows there IS a market, Our arms haven't got any shorter in the last few years, there's no reason to assume that the market is any significantly different than it was in 2002...
OR.... Yamaha can get it wrong, just like any other company.
Now, which is it...? You can't have it BOTH ways, you know.
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An arranger is just a tool. What matters is what you build with it..!