Decision. The impact of local events on travel planning is not a fixed component of the destination validation process; it is a highly conditional variable.
Let's stop going in circles; a local event can be decisive or completely insignificant, depending on the traveler's context.
In Switzerland, Paleo can transform Nyon, but the following week, it's dead calm; a business trip to Geneva will not be affected by a farmers' market, for example.
It cannot be treated as a permanent component; the level of relevance must be set according to each situation.