For context - Future Press makes extremely high quality, collectors edition guides. These go out of print quickly, and then end up on eBay for hundreds of dollars. The Dark Souls Compendium goes for 500-1,000 all the time. The same will eventually happen to these two.
Also, people shouldn’t take “strategy guide” so literally. Purely collectors items. I don’t think too many people sit with the book in their lap. We knowwwwww there are better places for the info. They’re not meant to make you a master gamer, they’re just big collectors pieces for your favorite games and a huge chunk of this is about the game itself, the lore, etc. Read the description about the difference between the two.
I bought two copies of both. One for myself and one to keep sealed.