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