To us, it isn't worth it.
While we enjoy taking pictures, the thought of letting a ride photo go doesn't bother me one bit. I mean, for the most part, they aren't stellar photos. If it is your first trip, or your child's first time on a bunch of rides, then okay. If you only want one ride photo though, buying one photo costs less.
Second, it often takes time to wait for the Photopass CM to take your photo. Some folks see nothing wrong with waiting in lots of photo lines, but we prefer more balance with our time.
At the opening of AK, folks are absolutely streaming in the FoP queue! Every second of delay easily adds 5 minutes to your wait. The queue went from zero to 2 hours in less than 15minutes! Stopping for early morning photos by the tree carries a big price! Last summer, we were the cut off for the AK night show, the family behind us didn't get seats. Two seconds faster made a big difference!
About 2 years ago, we brought first timers to WDW, so we got MM. We didn't end up with very many photos, and we actually tried to find FP photographers!
Part of the footage of 7D was neat, but most of what you get isn't you. It is canned footage.
Also, well....I don't mind ride queues, but certain waits drive me bonkers. Normally, I don't pay much attention to other folks, so what they do doesn't phase me. MM forces me to wait behind others and pay attention to the things they do. Watching folks go to obnoxious lengths in their effort to get the perfect photo puts a damper on my day.
One family had a crying baby, and the situation kept going downhill, but mom didn't care. Dad didn't intervene. It was painful to watch. The baby went from mildly unhappy to wailing, and a happy baby photo was clearly NOT going to happen, but the parents didn't care. What did the child have to do to get dad's intervention?
There's also the extended family that insists on getting all 20 different partial-family configurations. I get it if a family wants a few combinations, but there's a point past reasonable.
Generally, I don't care what other folks wear, but sometiems it is painfully obvious that the 'family costuming' is making at least one family member miserable. What is the priority? What do these folks value, when their daughter is crying because the high heels hurt? Or the son, surrounded by pink glitter, so obviously feels left out?
I like photos well enough, but there's something perverse that happens to some folks when they enter WDW. The castle façade doesn't always bring out the best in people.