How common or uncommon is it for a new arranger model to look exactly like the previous model? If thatís the case with the S970 vs the S950, whereís the difference? Will it be the sound, styles, voices, features, what? And, will this difference be enough to justify the obligatory price increase thatís most likely? Iíve been trading-up each model with Yamaha. May just continue to enjoy the S950. Will wait and see.