The Kawai & Teisco Analog Synths Group

Hello all - 

I inherited a Kawai SX-210 about a year ago from a friend who was
getting out of music.  I played it for a few shows and I'm fond of it
- but truly I'm a bassist at heart, and in order to fund the bass of
my dreams I have to sell a few things... *sigh*

So I'm looking to find a good home for the SX-210.  It plays fine -
the keys are all good, some of the buttons are a bit sticky and the
dial can be touchy, but I believe it's nothing that a good cleaning
wouldn't fix.    There are screws missing along the top of the synth,
but structurally there's nothing wrong with this synth that I know of.

Problem is, I don't really know what to ask for it.  There's none on
ebay at the moment to give me an idea of its worth.  I found one post
online where someone bought it for $150 US and another where someone
bought one for 150 UK pounds - that's a pretty wide range, and it's
from a few years ago to boot.  I don't want to accidentally undervalue
it, and also not ask so much I get laughed off craigslist.  ;)

Of course, if anyone here is interested in it, please let me know!

Thanks very much - I appreciate your help.

Kirsten