old classic phono cartridges


Is there any market for used (some working, some not) classic phono cartridges?  I have still have a fair portion of my old units and wondered if they had any value.  I've got::
Lyra Clavis
Grado Ref Master
AQ 7000
Madrigal Carnegie One
Linn Akiva
(I thought I had a Monster Alpha2 as well but can't find it at the moment)

rparker
When you want to keep them, send some to a retipper. The results are stunning and some of the old "new" ones will put modern, overpriced carts to shame. When you can hear differences of course ...
"When you want to keep them, send some to a retipper. The results are stunning and some of the old "new" ones will put modern, overpriced carts to shame. When you can hear differences of course."

+1  I have quite a few of the older carts that have been retipped that perform as well if not better than a lot of the new models..