But my point is, I'm not sure you find that equilibrium. It needs to be people that can afford that who are not currently paying for it. Basically, you need 10% (or 12%, whatever the number ends up) that are not currently willing to pay that because they can get MP, that have the means to do that otherwise. Are there enough people who pay stay at a non-deluxe that have the money to pay an extra $1,500 a day for their family to skip every line once, but won't do it right now because they would rather do MP?
And especially if you go the route you suggest, I have a tough time believing many do it for anything outside of MK and MAYBE DHS. So people may be willing to spend say $300 for it at MK (and maybe they park hop to another park to use as well). But, are you cutting into the money people may spend for it at DAK or Epcot if it was less expensive? I'm just not convinced they can hit a sweet spot where it will financially make more money to offer only PP, especially as a park hopper (unless that is a separate cost, like, each park has it's own price, then a higher tier is for all parks, but even with that, are you finding this sweet spot).
At any rate, interesting discussion. It will be interesting to see where they go with it/how they decide to run it with all the other forms. If I was asked what I think makes them the most money, I'd keep single use, drop this down into the $100's, and add a $300-$400 tier where it's unlimited rides on anything. I'd bet most the people who would pay $175 to ride everything at Epcot once would pay more than double that to ride Guardians and Test Track like 5 times.