Fran,
Call Uncle Dave--He only has one 2100, and everyone needs a spare. I guess if you're doing a lot of sequencing, the 1000 may be better, but I have no idea because I do very little if any during live performances. I would buy it, however, it would probably result in a drastic change in my marital status because there are four keyboards in the office now, and she would DEFINITELY notice a fifth.
Good luck on whatever you decide upon and keep in touch,
Gary
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!
K+E=W (Knowledge Plus Experience = Wisdom.)