Actually, I'd be going for a 76 S910 if there was the option.

The thing is, what on earth is the difference between these 'piano based' arrangers and normal ones..? Square keys? Because that's all there is. No other difference whatsoever... Not even weight of keys, as the NP's action is as lightweight and horrible as any synth keybed. Completely unweighted. Nothing to do with a piano at all...

You are grasping at straws to justify the unjustifiable. The NP-V80 is the arranger from Yamaha we have all been asking for. Just, unfortunately, a pathetic, crippled, basically useless version of what we have all been asking for. I would simply like to understand the logic where a BOTL product like this has NO upward path from, but a BOTL 61 arranger DOES... Does Yamaha really think that anyone that chooses a 76 BOTL arranger is NOT going to want to upgrade ever, but a BOTL 61 note arranger user IS..?

There is NOTHING 'pianistic' about the NP-V80. Every arranger out there with 76 keys has at least as good a piano sound in it, and enough keys to play it on, and having square unweighted keys doesn't magically turn it into anything different except to those looking desperately for an excuse for Yamaha having made this blunder.