One of the things you will miss on an S-series will be the Tyros4's FSX keyboard, the
Lexus of keybeds in my opinion.
Whilst I really like the light, quick, accurate action on the PSR, I've really come to appreciate the FSX and it's extremely expressive initial and aftertouch features.
Sure, there will be a Tyros5 and a new S-series, but, take it from me, as one who is involved heavily with arrangers (especially Yamaha), you wouldn't go wrong with a Tyros4...I know I'm more than happy with mine, and I can't see anything in the future to change my opinion.
Al mentioned, earlier in this thread, that he had people dancing to his Tyros4...I played New Year's Eve, and although it wasn't a dance per se, it ended up as one with the Tyros4 delivering the goods in spades. The styles and sounds are superb!
A
thoroughly terrific instrument, and, if I sound like I'm smitten...I am!
Ian