What's ignored from this discussion is returning to the ticket books will instantly reduce capacity of the parks. There's a different philosophy in play when you assign $ dollar value to the rides. The guest will ration their tickets and only pick the rides they KNOW they will ENJOY. They won't experiment as much with older and less popular attractions.
By sticking with the buffet style, people will visit anything. Thus, the less popular attractions might have more value when the park is much more crowded. Less waiting, more seats, another ride checked off. Subjectively and objectively, the lesser attractions are more valuable when the park is crowded.
Disney can sell tickets to capacity and know the guests will still be served. All rides are opened and operating. Guests can do at least some attractions and be satisified.