I also feel that to justify the cost MM forces us into getting way more pictures than we would normally take, and take more time to meet characters, which is a good thing! It usually only takes a moment to have them taken and some of those pictures are a riot, especially the ones taken in the same spot at different times - like a sunny happy morning followed later by a torrential downpour with our ponchos on. My niece has hit that terrible awkward early teen stage and we crack up over some of her reactions to poses this last trip. We got the most amazing photo at MK right at RD - Mickey and the Main Street residents were still waving to the guests from the train platform and we have them in the background waving at the camera. No passers-by ended up in the photo; it's just my family and the characters. For me that one photo alone made MM worth it.
To be relevant, as PP said, you get the meal and ride photos with MM.