What was the last game guide you bought (or was bought and given to you)?
Mine was Tomb Raider 2 (PC). It was a gift with the game from my dad, and even back then I thought, "You didn't need to buy this, it's all on the internets!"
If I was Prima, I'd start partnering with devs to include exclusive, substantial DLC codes or something - that's the only way I see myself buying one. Not that I want that to happen...
Yeah, please don't listen to me Prima.