I understand your views, Chas, and respect them wholeheartedly. All I can say, is I'm glad I don't quite feel the same way.
  I don't/wouldn't play my S910 in the manner of the demonstrator, 
even when I am demoing.
  On a gig, I 
never use factory intros, nor do I use factory endings...in fact, I don't use factory styles per se...I edit and re-assemble styles to my own liking.
  So, I make 
my own styles, write out 
my own arrangements of cover tunes(of all genres)and manage to achieve 
my own distinctive sound on an arranger.
   Is my my audience hearing 
me? 
   I believe they are...I'm playing the melody, and I'm directing the band, "live", through 
my chord changes, and I am adding another part via 
my left hand...I'm 
playing. 
   I'm sure there are many other SZ forumites who do the same.
   That's what makes arranger keyboards so darn cool! 

  Now, would I would go to listen to just 
any arranger player? I wouldn't go to see buddy in the video, but I have gone to hear a friend of mine play arranger at his local haunt.
   He plays a lot like I do, and I enjoy listening to 
his arrangements, and 
his take on tunes, some of which are ones I play.
   He packs the place, and I can say with all modesty, I do the same when and where I play.
   I'm sorry 
you wouldn't be there, so I could send you down a beer, but I do have to say, my arranger gigs have been some of the most satisfying times I've played.
   I enjoy playing in a group as well; probably just as much, but in a different sort of way...I enjoy the 
interaction...and, I play fairly often in this manner.
  We must remember these are 
home keyboards, designed to make as much noise as possible with one finger chords, and flashy intros and endings....they are 
fun for most people.
   But, some of us are brave and foolish enough to take them out, and make a living playing them.
    Bottom line...I use an instrument that could be a sin to the purist, but it is 
me I am trying to please, not the purist. I make 
no apologies. Period. 
   I like, and understand your views, and I do agree with 
some of them, but, as you can see, not 
all of them.
   I know you're not being a curmudgeon...you're too young for that 

, and I'm glad you brought up this topic...things are/were a little quiet without the D&D turbulence. 
    Ian