Spencer, is that Cosmos Factory worthy of the purchase? AP typically does a very good job, but I thought to ask your opinion before I jump in with a purchase.
Discogs says ~$100, I paid $30-$35 new back in the day. If it's $40 in print, yes it's worth it. It's Hoffman/Gray, hard to beat. I think I like their Green River even more. But for $100 used? Not that high on my favs list to justify for me. Would rather sell you mine for $90 ;-)