Becca Boo.. the 17th, 18, & 19th will be crowded. My kids have a 4 day weekend off of school, and since they already missed a few days in October, we thought this was a better time to go for them. We were at WDW on Martin Luther King weekend once before, when I didnt know what I was doing yet. It was either our first or 2nd trip. We were in Magic Kingdom and it was just wall to wall people!!! You could barely get through the people and strollers by Peter Pan and Its a small world. I think we rode 4 rides that day, and ended up leaving. We just kept walking and walking, looking for a ride with a wait less than an hour. We are used to low January crowds, and no lines, but that day was awful. Ive since learned my lesson! I avoid MK on Saturday's now, and Sunday's since that is now their extra magic hour. besides hopping over to MK on Saturday, jan 17th at night to see specto, we will avoid MK the entire weekend. They are showing Specto again on tuesday and you will be there the next weekend too!