Amazing? Why? The Mohegan hotel has occupancy above 90% most of the year.
One word : ARENA!
Also, they are quite good at booking out conventions mid-week.
As a SOAR, I am able to book 2-3 rooms (2 comp); even on popular weekends.
Mohegan is in desperate need of hotel space. Believe it (or not) non-gaming folks will pay $800 to $1200 for a hotel room on a “hot” concert weekend!