I greatly appreciate the speculation about what will happen to PRGS. It's a complex topic and I'm not sure what will happen.
Years ago, I posted an analysis showing how increased ticket prices hurt discretionary spending (what Disney refers to as "merchandise, food, and beverage" sales). Similarly, as others on this thread suggest, Guests who pay more to get to WDW will have less to spend at WDW.
However, please keep in mind that hotel occupancy and PRGS are two different things, and how these are impacted might be different.
Paying for airport transportation will almost certainly impact hotel occupancy - more people will stay offsite. Is it 1%? Is it 10%? Presumably, Disney has data indicating it is closer to the lower number. Disney would be crazy to end MDE if they think occupancy will drop 10%.
To understand why it would be crazy, you have to keep in mind how hotel margins work. Hotel costs are relatively fixed. A 10% increase in the number of Guests staying at a hotel does not result in a 10% increase in Disney's costs. Based on historical data and under
normal operating conditions, Disney's break-even seems to be somewhere around 70-75%. Once occupancy gets higher, it's mostly profit. This means that a drop from 90% to 80% represents a tremendous decrease in profitability.
How the end of DME affects PRGS going forward is more complex. Remember, PRGS is spending per
occupied room, which is independent of occupancy. If I'm at a Disney hotel, I'm still going to east breakfast, lunch, and dinner. And if I'm using Grubhub or DoorDash to get my food delivered to the hotel, Disney loses my money even if I used DME to get to the hotel. (Although Disney's hotels sell merchandise, this is the smallest component of PRGS.) So I'm not sure how the end of DME will affect PRGS.
However, the end of MDE might impact what Disney refers to as Per Capita Guest Spending (PCGS):
Per capita guest spending is used to analyze guest spending trends and is defined as total revenue from ticket sales and sales of food, beverage and merchandise in our theme parks, divided by total theme park attendance.
My
guess is that most discretionary spending occurs at the theme parks, not the hotels. I can envision how paying for airport transportation will have a bigger impact on Guest spending at the parks (i.e. PCGS).