We do PhotoPass for a few reasons:
1. Mom wants to be in some photos too.
2. Actually mom wants to be in all the photos, she loves character meets more than the kids do.
3. Mom doesn't want to haul a big camera around.
We didn't do it the first time we went and there are very few photos with me in them.
We did it last year, eventhough it was just me and hubby and we got TONS of photos with us together. yes, I had my small point and shoot, so I would have a CM or PhotoPass person take a pic with it as well, but we got some super fabulous photos from Photopass photogs.
I even had them take photos with my iPhone so I could Facebook some right away.
We are going this August, and will use the PhotoPass. With three kids, and my in laws going, I want to make sure we don't miss anything.