The lowest cost: the impact of local events is only one variable among others, rarely the most decisive for most people, and often conditioned by budgetary constraints or fixed dates.
For a light travel strategy, focusing on essentials is paramount.
Many people in the Netherlands cannot afford to change their dates or destination because of an event, as their budget or limited holidays take precedence.
For example, traveling during school holidays often makes prices higher, regardless of events, and one does not miss family vacations to avoid crowds.