AS200 fair value?

[Larry Snyder <larrys lexis-nexis com>]

Hi all --
I'm retiring my faithful AS200 after a year or two of excellent
service in favor of newer/faster/(plug in your favorite term for
technological progress) hardware.  I know pretty much what I have
invested in it, but no good handle on fair market value.  I could
use /dev/clue here.  Here are the pertinents:

AS200-4/233
21064 @ 233 MHz
embedded SCSI 53c810
embedded ethernet 10BaseT or 10Base2 -- de4x5
embedded sound -- uses MSS driver
#9 video
isa pcmcia slots
80M ram
4.3G hd
scsi cd (12X or 20X -- I don't remember)

This was one of the Onsale machines.  Anyone with a guess what I should
ask for it?
TIA,
-ls-