Thanks for all you your replies about the kids and school bit! I feel better!

I should have known that my fellow Disney Fort folks would see it my way! We take them out twice per year for a few days each time, not a whole week. This time will be a whole week but at school, they are doing review for standardized testing, so I said to heck with it, and decided to book the whole week so we could get in 10 days at the Fort.
We don't think twice about taking our kids out of school but we do try to plan it wisely. (Or rather the DW plans it wisely, I just nod my head).
Anyway, that's why we spend Thanksgiving time there.
We leave from North East PA Tuesday before Thanksgiving after work/school. That way we get below DC without too much problem. No school missed for the kids. Then we spend a night in a truck stop or rest area.
Get up early the next day, get a good breakfast (Usually Cracker Barrel or something similar) And get on the road. Since, for our kids, this day is usually a half day, they do miss school, but work-wise, they really don't miss a thing. We drive all this day and stop just outside of the Fort somewhere (about an hour or so away) and spend the night (a few hours).
Next day (Thanksgiving day) we get up early to get to the fort and get checked in. No crowds, but we do have to go inside to check-in. No worries though. I'd rather do that.
Since it's now Thanksgiving, kids not missing school this day, black Friday, the weekend or even the following Monday. In NE PA, Hunting is very big, so in our area, the Monday after Thanksgiving is the first day of Buck (rifle) season and most schools just give it off because historically, the schools end up very empty anyway (although not the case any more, they haven't changed that yet).
Then we stay the rest of that week leaving Friday night or Saturday morning. So we end up with 9 days at the Fort and the kids only miss 4.5 days (and really only 4 days). Last time, they also had a snow day the day after we left (that half day before Thanksgiving) and another one after the holiday, so they only missed 3 actual days of school. PLUS they had all their homework with them to do during the down time, so no real catch up to do.