My take on the G70 resurgence is that I think a lot of live band players (got two locally who just bought one) are getting into them. IMO, they are one of the few arrangers that hold up comfortably to a full band, but you can go out and do a solo or duo on them as well (which you can't with a WS, easily), if perhaps a HAIR handicapped compared to say a T4. And, as a live performance keyboard with a band, easily the equal of anything in the WS market sound-wise (with an SRX card in), and ease of use is light years ahead of any WS.
I'm glad I got my spare. I do everything from full size real band, studio work and solo's and duos on the same piece of gear, I never have to deal with a learning curve for one keyboard for one job and another for another. Everything that I set up for live band use (splits, layers, sounds that are gig tested against a REAL drummer) I then use for solo and duo work, so I get to set the drums where the real one would sit, and my sound changes little.
That's what I'm shooting for. If I HAVE to work with a machine, I'd like it to sound as close to the live drummer as it can. G70 nails this as good as anything I have ever played. TBH, what is surprising is that ANY G70's are out there for sale. Probably home players getting rid of them. But every live band player I work with has nothing but questions about my G70. 'Where can I get one?' I'm asked all the time.
I really think Roland screwed the pooch with their marketing of the G70. They stuck it in the Mom and Pop piano stores with the KR's, and that's NOT its market... If they had kept it in MI stores, and sold it as a 'Live Stage' keyboard with TOTL SMF playback and decent arranger capabilities as an extra, it should have sold much better. MUCH better...!
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An arranger is just a tool. What matters is what you build with it..!