This is actually our plan for Xmas week. I MIGHT get H to cave in and get us all a 1 day MK ticket so the kids can hit their fav rides, but he's pretty set on a NO PARKS trip. For us, it's mainly for the cost. A 1 day MK ticket that week will set us back over $600 for the 5 of us. We've gone to the parks 8 times in the last year and a half (our Annual Passes expired in April and we chose not to renew), and since there's nothing new at MK, even I'm kind of "meh" about it.
For us, we need something to do that week. The kids are off school and my husband and I are lucky enough to earn more vacation time than we could use, so we'd be going SOMEWHERE regardless. And for us, Disney is a cheap vacation. We drive our motor home down (~$500 round trip for gas) and we are paying ~$1,200 for 6 nights of camping, which, when broken down by night, is only slightly more $ than our local Yogi Bear Jellystone Campground during a holiday (and that place isn't half as nice as the Fort). Not that we even have the option to camp in NJ during winter break, but if we did, it wouldn't be a much cheaper vacation. Also, it's another chance to use our RV. Living in the Northeast really limits our camping time.
So, we'll keep ourselves busy with the structured activities at the campground, swimming, fishing, bike riding, go tour the holiday decorations at other resorts, watch the water pageant & fireworks, go to the NYE party on the beach, and we'll have 2 or 3 character meals (mamma needs her Disney fix!). I also plan to make a few trips to Disney Springs since so much has changed there, and on our parks-focused trips we usually skip it.