Cape May has a surcharge for the Crab Legs but the amount of food brought to the table is huge and you can always get more. Grandkids ate four platters of desserts when we were there last.I think a surcharge for certain items is possible. At least one restaurant has introduced one, maybe Cape May but don’t quote me on that.
But yes, BOG is the example of how people exploited the breakfast to just order coffee to beat the rope drop crowds. Which is why prix fixe for Space 220 isn’t a total surprise.