What's the market these days for NOS 70's/80's cartridges and/or tonearms?

EBM certainly doesn't seem to offer anything edifying to the conversation.  The dumb comments likely produce the opposite.  I'm outta here.  Talk to the hand.

When writing my post for this thread, I probably should have been clear to indicate the purpose of my question was with a view to sell the NOS items I originally obtained for a second vinyl system project, but have now changed my mind.  At the same time, I didn't want to appear to "sneak in" items for sale via the question, so I just asked the general question regarding the current market for items such as I've mentioned.  Sorry if I've wasted anyone's time by the lack of clarity.   Yet, the feedback and responses thus far have been helpful, nonetheless.

@chakster

Thank you for the kind and informative response guiding me through the various online seller/buyer options, plus the other advice relative to selling - very helpful!

@rauliruegas;@chakster

Thanks so much you guys.  I guess because I have no feedback (never been a buyer or seller here, since almost all my sales have been private party or dealer sales and/or trades), and I had thought Agon buyers are a bit picky about the lack of sales history.  But perhaps I should give some listings a try, as you suggest.

I don't have a lot of items, but do have a few I believe are desirable, e.g., Shure V15 Type 4, NOS; Stanton 681EEE MKII, NOS; SME3009R, NOS, unopened; 1957 TD124 (first year production, likely Sept S/N) from estate sale (it came with a Rek-O-Cut 120, and everything functioned fine).  Other items are just vintage HiFi equipment, of which I purchased new in mid-late 70's, that I previously had an nostalgic attachment to, but fortunately for which I kept all boxes and manual - - like Pioneer Spec 1 preamp, JBL4311WXA, Phase Linear 400, and, most recently I decided to sell my Herron VTPH-2A phono pre (only 40 hrs on it, so it should go quickly).  Again, I'm not trying to elicit buyers in any respect by identifying what particular items I'm interested in discovering the market for purposes of listing appropriately in accordance with, especially, Agon standards, etc.  

I'm going to list the items for sale on U.S. Audio Mart instead of Audiogon. . . for all the good reasons noted.  Thanks much for the feedback on my post.