Bari is not only a city choice. For many first Puglia trips, it is the place where the route either becomes calm or starts with too many moving parts.
The decision is practical: after the flight, baggage, airport rail, Bari Centrale, taxi fallback, hotel check-in, and dinner timing are considered, is it still wise to keep moving that night?
If the answer is no, Bari earns the first or last night as a buffer. If the answer is yes, move on to the place that should actually carry the trip: often Monopoli for the coast, Polignano for a focused cliff-town stay, or an inland base after a checked car, driver, or rail plan.