We have been to the MVMCP the last two years. During the day it has been warm, shorts and t-shirt weather. We usually change before going to the party. I purchased a special holiday sweater for both my daughter and myself. Alot of other guests seem to do the same, plus WDW usually has a holiday t-shirt and sweatshirt with a holiday theme. I did purchase a t-shirt to wear other days during our visit.
I was also told my guest relations that WDW only sells 2000 tickets per night to each party. I have to believe this is true since we have never really had to wait in line for any ride in the last two years.
I was also told my guest relations that WDW only sells 2000 tickets per night to each party. I have to believe this is true since we have never really had to wait in line for any ride in the last two years.

There seem to be more negatives than positives. Still can't decide for our trip 12/17-12/21. We could go either 12/18 or 12/20, but I'm afraid 12/20 will be packed b/c it's the last night.