From what we have heard, there seems to have been massive disturbance in Roland's arranger line from a failed attempt to move production and development to China from Italy. Things like this have more to do with production interruption than simple product demand. Few have even SEEN a G70/E80/E60/E50 in a store near them. Personally, I blame Roland's marketing and production practices more than the product itself.
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An arranger is just a tool. What matters is what you build with it..!