Track Book Prices

I've collected many things over the years, but I'm currently very into vintage SciFi & Fantasy.  With the prices I'm seeing online for First Edition and BCE copies, it would appear that I'm not the only one doing this either.  My most expensive book at the moment is a BCE of Dune, which ran me around $200.  First editions of that book are in the thousands, and it's not unusual for other early Hugo/Nebula winners to be right up there.  

I'm not sure what all is involved with getting something like this set up, but if "books" is too general, SciFi & Fantasy would probably be a good place to start given the crowd that's already using the platform.  I did notice one other topic submission that noted an interest in manga, but I can't speak to that personally.  Unfortunately, that submission did not appear to have much thought behind it, hence the creation of this one.

For anybody else coming across this post, please upvote and be sure to leave a comment related to the genre(s) of book(s) you'd be interested in tracking.

Thanks!