Astro equipment pricing?

Does anyone know of a book or web site that lists the approximate value for
various astro equipment? I have tried searching Astromart for prices based
on past sales, but it is tedious. I decided to sell all of my astro
equipment because my interests have moved on and I almost never set up the
telescope anymore. Seems pointless to hang on to all of it when I'm not
using it and am not likely to in the future.

Any pointers would be appreciated. Thanks.

-Keith