Any resale value for an MP2003, 3174, 7171

[George Haddad]

We are about to de-comish our MP2003-205 (w/internal DASD, 512M memory 
,  and 10M OSA adapter). We also have a 3174, a 7171, and  some 3480s 
w/IDRC, all in good working order.

Is there any resale value to these or are they just boat anchors?
Also, if anyone wants a museum piece, we also have a 3803 controller, 
(no drives), but I don't think it's working.