Let's forget the binary between fictional inspiration and tourist guides for choosing a destination; the real question is the pragmatic feasibility of the trip.
Neither movies nor brochures pay for tickets nor manage leave.
The third way that no one asked for is that the true decision drivers are often logistical constraints and available budget.
For example, I can dream of Patagonia after a novel, but the concrete planning and flight prices from Brussels Airlines will decide if the adventure is possible or not.
Guides become useful only if the material conditions are already met.