As far demos goes, there are 2 things manufacturers do in their "demos", some, like Roland, use midi files arranged in a very nice way, but unrealistic for those who play in real time, it happen to me with the VA7, I did believe the demos, and I was very desappointed, and dump it after 3 months, is the shortest time I ever had and instrument. So I am just say, be very careful until you put your hands on it. I think that Ketron has the most "Honest" STYLE demos, ANYBODY, out of the box can replicate this, and not in some of the other makers. Remember that I own now a Tyros2, and a Korg PA60 soon to be replaced for the SD5, I had X1HD and 2 SD1s and I really liked them, excep the polifony issue since for my style of playing, 64 notes is not in off, so, I have to see now with the 128 notes and new functions, I am looking forward to make a nice PAIR of keyboards with my T2.
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mdorantes