Eh, it cratered at exactly the time that they crater every year: the last week(s) of August when kids go back to school. September has historically been the slowest month because of back-to-school and weather being generally awful. They're sold out solid the entire rest of the year, as evidenced by the impossibility of getting hotel reservations in October, November, or December.
It cratered a lot more then it usually does for this time of year though. I posted this in another thread, but here's the touringplans comparison:
8/26/21: Expected Crowd Level: 1, Observed Crowd Level: 1
8/25/21: Expected Crowd Level: 1, Observed Crowd Level: 1
8/24/21: Expected Crowd Level: 3, Observed Crowd Level: 1
8/23/21: Expected Crowd Level: 4, Observed Crowd Level: 1
8/22/21: Expected Crowd Level: 2, Observed Crowd Level: 1
8/21/21: Expected Crowd Level: 3, Observed Crowd Level: 1
8/20/21: Expected Crowd Level: 2, Observed Crowd Level: 1
8/19/21: Expected Crowd Level: 3, Observed Crowd Level: 1
8/18/21: Expected Crowd Level: 3, Observed Crowd Level: 1
8/17/21: Expected Crowd Level: 3, Observed Crowd Level: 1
8/16/21: Expected Crowd Level: 4, Observed Crowd Level: 1
8/15/21: Expected Crowd Level: 2, Observed Crowd Level: 1
8/14/21: Expected Crowd Level: 2, Observed Crowd Level: 1
8/13/21: Expected Crowd Level: 2, Observed Crowd Level: 1
That is 13 days in a row of Crowd Level 1 observations. That is unheard of. Here's the comparable 13 days in 2019:
8/26/19: Observed Crowd Level: 3
8/25/19: Observed Crowd Level: 3
8/24/19: Observed Crowd Level: 4
8/23/19: Observed Crowd Level: 2
8/22/19: Observed Crowd Level: 3
8/21/19: Observed Crowd Level: 4
8/20/19: Observed Crowd Level: 3
8/19/19: Observed Crowd Level: 5
8/18/21: OCL: 4
8/17/21: OCL: 6
8/16/21: OCL: 4
8/15/21: OCL: 5
8/14/21: OCL: 6
8/13/21: OCL: 5