At Marriott and Hyatt the payment a hotel gets for your award night is not linked to the number of points you pay.
Most hotels actually want your award business. If you’re taking up a room that would otherwise go empty, it’s pure marginal revenue. And if you’re taking up a room on a night they’re full they get a large payment – generally equal to their average rate for the year, though not as high as the highest rate they might charge on that night. One hotel is even warning members about the impending award chart price increase for the property.