I was testing out the xv-88 at sam ash the other day using the piano
setting (seq: pop(?)) and the highest keys sounded really
cheesy/electric; I thought xv-88 is the synth with the best acoustic
piano sounds(?) Was it just the store keyboard/headphones that made
it sound weird or are all the xv-88's like that? Also the
weird sounds are amplified especially
when the sustain pedal is pressed.

someone let me know what they think...I want a synth that also has good piano sounds and expandability.