Before committing, it is essential to consider the mandate of tourist guides, which far exceeds simple support for fictional inspiration.
Their main role is to offer a fail-safe, a verification of practical realities that fiction, by nature, does not have to provide.
Without this prior verification, the risk of disappointment or even financial drawdown is considerable, especially if one relies solely on stories.
For example, a novel may describe a charming hotel from the 1950s, but only a guide will confirm if it is still open, safe, or even accessible with a limited budget today, thus providing a feasibility condition.