Would you say the same if they start charging $25/person for Magical Express? Isn't
@jimmymc right that ME is built into the resort budget?
But, once again, this parking fee is NOT as a commodity-priced item. Adding the parking fee didn't reduce the cost of the rooms for everyone else, they are still going up every year. Disney doesn't price rooms based on the expense it cost to operate them, they price them based on the cost the market will bare. The parking fee is a value-added profit item, they can make make more profit providing the same level of service. And one day, they'll do it with the ME.
But, once again, my argument isn't about the cost. If we can afford $3000 for a room for 6 nights, we can afford $150 for parking. It's about the way it makes us feel as "guest." and this is really just one example of many. We feel less appreciated, we feel more like ...cattle, and that impacts our future vacation decisions. If we're not getting the same warm and fuzzies we used to get (even if by the placebo effect), we'll go elsewhere and try something else.