Roland have long offered a 76 at a reasonable price... in fact, the E60 was even LESS than the BK-9! And it had speakers too, at about the same weight (or less) than an S910.
This, I guess, is what confuses me so much about arranger players. If they came from a piano background, wouldn't at least a 76 allow a far more pianistic approach to playing? If they came from an organ background, they came from having TWO 61's and at least 7 at the feet... 122-130 notes! Going from all that to one measly 61 seems so limiting to me, at least.
And trust me, Ian... once you get to use a really GOOD touch screen, with well designed flow to the layout, you won't want to go back..! I must confess, I haven't yet played one as logically laid out as the G70's. I HATE the Kronos's (too small fonts, stuff too close together to hit accurately while playing), I don't like the PA3x's (a bit sluggish and unreliable). Haven't tried the new CVP's yet, though. But if the Kronos or the PA3x were what I was basing my opinions on, I must admit I wouldn't be a big fan either! It really IS about the design flow and layout more than the screen itself.
Getting old definitely ain't for wussies (just had a trip to the emergency room last weekend myself for a blood pressure issue!), but all in all, if Roland offered a BK-9 with the case, action and touch screen of the G70, at the G70's weight, I'd have bought that in a flash over the BK-9! Experience, dollies and leverage make up for what strength I may be losing! I don't mind the low weight of the BK-9, but it cost me more than I wanted to give up...
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An arranger is just a tool. What matters is what you build with it..!