Not surprised. Stuff is expensive now. We have to book rooms for work (not me personally, but our company) every couple months to work out of town. The rooms are the only game in town, and are $115 a night, no frills and no meals.
When we went up to Glacier this summer, the KOA charges $140 a night for a RV spot! Though it IS pretty luxurious there, and only about five minutes from the park. And don't plan on rolling in and getting one. Those coveted RV spots have to be booked a full year out!