Hi. We have been on several Disney cruises but have only been to WDW one time about 10 years ago. It is me, my dh, and two ds (age 14 and 2). We would only be able to stay for Wed night (12-20) and leave on Sat (12-23). We were thinking of going to the party on Thurs. night. Would it be worth the trip for just 2 days at the parks? Also, how bad are the crowds this time of year. This would be a very spur of the moment trip just something special for Christmas.