Nice to see Disney do something like this for their guests. E-Ride nights are well worth the money spent. We went in November of 1998. If you want a great night time photo in front of Cinderella's castle, with no one in the way, this is the time to get one. You almost feel like you are the only ones in the park.
Characters are a plenty, too.
We were in Tomorrowland, when Pluto and Tigger posed together for a family photo. There were a number of other characters eagerly greeting families. We had a blast and will definitely do it again, and again. I am such a night person, and being able to explore the park without the thousands of other people was spectacular. I would highly recommend it, especially if you don't have kiddos with you.