Forget the binary between fiction and guides as travel triggers; the real trigger is often much more pragmatic.
Neither romanticized inspiration nor travel manuals will dictate departure; it is the window of opportunity and word of mouth that prevail.
An unexpected third way is the influence of close ones who have experienced it and shared the good deals.
For example, many people travel to Croatia not for a film, but because a friend praised the beaches' beauty and an unbeatable flight price.