Let's borrow from biology: does the presence of a predator species always determine the migration of prey, or are there more fundamental factors that dictate its habitat and movements? Local events have an impact, certainly, but they are rarely the main driver of destination validation; they are only a contingent factor. It is the same shape as building a building: the foundations (budget, dates, accessibility) are decided before the finishes (cultural events). For example, a Swiss resident will always prioritize cost and availability of accommodation for their holidays, then adapt if a festival coincides, rather than choosing their destination for the festival.