I think George is on the right track. When I started sailing in the BVI 50 years ago, I considered The Bight to be crowded if there were as many as six boats anchored there (usually in the northeast corner) because it was pretty deep to anchor elsewhere. Planning my itinerary more recently has been part trying to avoid peak days for popular anchorages (e.g., Tuesday/Wednesday at Anegada) and part giving up other daytime activities to insure I arrive early enough for a ball. What a blessing to be assured a ball regardless of arrival time. And as an econ major, why shouldn't the cost be tied to supply and demand? Ever tried to book a hotel room on a holiday weekend?