There’s a second edition of Bookery’s Guide to Pulps & Related Magazines, new in 2020 from Ivy Press. It’s a comprehensive price guide in the Overstreet tradition, but could also be a handy lookup for years and titles for historians. The 400-page 2005 edition is on Archive.org, if you want to see the sort of thing you’ll be getting for your $30 for the new edition.
For those who buy a copy, I’d suggest you might get an interesting blog post by tabulating a few prices, comparing 2005 → 2020 and looking for trends both up and down.