Before enthusiasm, one must question the classification: tourist guides are not just a sub-part of inspiration through fiction.
A guide offers practical information and logistical constraints that are often the most important for the safety of the traveler, such as knowing if a campsite is permitted or prohibited.
Fiction creates desire, that's true, but the operational reality of the trip is dictated by practical details that a verified guide provides.
Without these checks, a destination inspired by a novel could turn into an administrative problem or safety issue, for example, if one arrives in an area where wild camping is illegal, which could lead to fines.
Their function is distinct: one inspires, the other anchors in reality, an essential distinction for a successful trip.