It is worth it, even for just the ride photos alone. With only 4 nights you will have to make a point to stop at the photopass photographers to make sure you get you moneys worth of the pictures. It really shouldn't affect your touring plans as they are in various places around the parks. The MDE app actually shows where you can find photographers.I was thinking about buying the Memory Maker for our 4 night trip in November.
Is it worth it?