I suspect unsound marketing (instruments sold in the wrong type stores) played a big part in poor sales in many areas, although they were sold alongside other arrangers here in Eastern Canada and still didn't sell very well.
I recall only three or four G-70's (and only a few E-60's) being sold in my territory, which was the four Atlantic Provinces, according to the sales people I spoke with back then...compared to many, many more Tyros and even CVP Clavinova products.
The only ones who know the real reasons behind the discontinuation of high end arrangers would be Roland's top brass.
I fear they may not make a TOTL arranger for some time (if ever), but maybe Roland will come up with a mid-range instrument that will take advantage of the newer (SuperNatural) technology found in their synthesizers (Jupiter 80/50).
Ian
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Yamaha Tyros4, Yamaha MS-60S Powered Monitors(2), Yamaha CS-01, Yamaha TQ-5, Yamaha PSR-S775.