I'm glad you're having a good time despite the flight troubles.
And don't worry about Santa. Apart from the warp drive in the sleigh and the metamaterial suit of invisibility, he can open small controlled wormholes through spacetime. At least that's what I heard. So unless his satellite tracking network breaks down, your gifts should find you here just fine. 

There are very few books I have re-read. A couple by Mayne Reid and Emilio Salgari (when I was but a wee lad), some by Terry Pratchett and one called Han Solo's Revenge :P. So unless I've had a really good time with a certain story (and have forgotten at least half of it), I don't think it's worth the time reading it again, when I can read something new. 
I've always wondered what books you discuss with your students (besides 1984), because in university it seemed to be "only teach them about books they won't go and read on their own"...

Bah, I digress, happy holidays to you! And loads of Christmas cheer!