I usually buy the guides for game that I will be putting a lot of time in just to make things easier on me. Like Skyrim, Borderlands 2, etc.. Basically, games that have a bunch of open world aspects, collectibles, and vary of equipment, enemies and lore. I love reading about the lore of games, it helps me identify with the game more. But that's just me. With that being said, I will more than likely get the guide for this game. I only see BradyGames that has a guide for preorder, I kinda like the ones by Prima, but will wait and see if there will be an "Official" guide.