If I had to defend the opposite point of view, I would say that the claim that tourist guides are just a component of fiction-inspired inspiration is an excessive simplification.
Their strongest version is that fiction creates a desire.
However, tourist guides provide a practical impulse and concrete information that can be the primary source of inspiration, regardless of any narration.
For example, a guide on the castles of Wallonia can inspire a trip through its photos and practical details without any book or film having awakened the desire.