I didn't know. Read what I wrote: "Is it a fixed price or does it depend on what you order? If it's a fixed price, does it make sense to order the most expensive items on the menu?" That's all I asked. Nowhere in my question was there anything about force-feeding yourself an expensive item against your will. You read into that. My question was crystal clear.
I was only inquiring about possible exceptions to the policy. For example, premium seats at the Hoop-Dee-Doo Musical Revue aren't covered by the dining plan. Perhaps there are some menu items not covered by the package? Apparently not.