I don't think I've had any Treklit Christmas gifts since 1976, when my parents bought me a copy of The Star Trek Puzzle Manual around the same time as I bought myself a copy. From then on it was pretty much taken for granted that I'd probably already have bought any Trek book the moment it came out. (Getting two copies was actually a good thing in this case, because it meant I could do all the crosswords, puzzles, mazes, etc, and still have a clean, untouched copy.)