Some pretty good comments so far.
I'm kind of on the fence though, but for a different reason. First, understand that Val & I visit WDW so often that we no longer do significant planning about what to do on each day. At best, we will plan a special meal one night during our visit - most often at a Signature restaurant. So, I don't mind having to have a CC on file for those few occasions. But what I do mind is that it somewhat limits the flexibility we have come to enjoy. In the past, if we were just feeling tired that night, we would simply cancel our ADR and stay in. But now that I'm going to be charged if I don't cancel at least 24 hours ahead that doesn't work.