I'm paying $1,700 including a case, a multi-functional pedal, it's got all the manuals and is in near mint condition.
So for a few $100 bucks more or less I'm pretty happy. Sure it might not be the deal of the century with all the bells and wistles but I haven't seen a whole lot going for $1,000 in this condition.
Here's one if you want to compare:
http://cgi.ebay.ca/Kurzweil-K2600-K-260 ... dZViewItem
Look at the pictures!
I think it's a fair price