I know you want more money for your CRS's for what I think
about it from you your asking more than what their retail price
of $1200.00 back in 1989. However, you don't know that it belonged to different people and you don't even know that it is probably used a lot and the quality is not the same as back
in 1989 as New!
As of today their retail value will be around $350.00 to $400.00
depending the conditions and that is still a good value for
14 years speaker.
You can ask for more if it comes with the Original packaging,
manuals and whatever comes with it when it is NEW and
the most important is the overall condition of the item also
if you are the ORIGINAL OWNER.