I guess it is a some sort of overlooking that demonstrators are usually show a cheerful and bright side of a keyboard rather than a dark, aggressive or a sentimental one. As I see it, it makes a keyboard seem cheaper.
I do not really see a point for frequent upgrades. It seems that at least two generations can be safely skipped.
After all, PSR-S975 appears as a really solid product in the market right now. In general, I see as a major achievement of today’s PSR’s that they went far away from “MIDI type” of sound, and styles do not sound mechanical. In the same time there’s still a gap between any arranger and the sound we are used to hear listening to the radio, watching movies or TV. That’s why I do not share a point of view that there’re no bad arrangers left – I see a huge way to go.
Yamaha played fair naming this keyboard S975. No big promises.