What's a 30-year old Grace F9-E Ruby worth?


Since vinyl has caught on again, I brought out my turntable from the 90's and played a few vinyls. I was surprised to see that the cartridge still plays fine. To make a long story short, I not into vinyl as I once was. My interest has shifted to 24-bit music, limited as it is.

Any idea what this cartridge is worth given its age.
reelnai
I was contemplating selling it if I could get a good price. Since I don't know the state of the stylus, I would feel bad if it didn't last long. It is 30 years old after all.
Try mounting it (if it's not already mounted( and playing a record. I know it's a very esoteric notion, but you could try it. I intend to do that with mine, today or tomorrow.
Inspect the stylus with 20-40 power loupe. That will answer your question. Iy upi have access to a stereo microscope (dissection scope), that would be better still.

I still have my F-E Ruby that I bought in in 82, or so.  Mostly I transferred vinyl to cassette, so it doesn't have a lot of hours on.It replaced my V15, when somebody broke the stylus, I never replaced (I regret that now!).
@tigertiger  you left your comment in a very old thread from 2012 

I still have my F-E Ruby that I bought in in 82, or so. Mostly I transferred vinyl to cassette, so it doesn't have a lot of hours on. It replaced my V15, when somebody broke the stylus, I never replaced (I regret that now!).

You can upgrade your F9 with styli from F14 series and it will be far better than Shure V15. The reason is Boron and Beryllium cantilevers designed for F14 series by Grace in the 80's. Another reason is the MicroRidge tip instead of Elliptical on your Ruby. Actually the generator on F14 also superior in comparison to the F9.