As a kid we visited Disney World 3 times around the holidays but it was never given as a surprise on Christmas morning. I can't imagine how excited I would have been to find "we're going to Disney World" under the tree!
The following year, our parents' business did very poorly. We were told that we were going to have a very small Christmas. When we woke on Christmas morning, we had one small package each - a tiny tin with a bow. Inside each tin was a picture of a character that resembled each brother - Mickey for the oldest, Donald for the youngest, and Goofy for me. We didn't catch on until the fourth present was opened - The Unofficial Guide to Walt Disney World. We absolutely flipped. Our grandparents had bought our family a trip to Orlando.
Since then, we've given up gifts and have had a small vacation every Christmas, instead. We still use the same tins that were used that morning, but we've gotten cleverer with our presentations. Last year, my parents had planned a trip to D.C. Each of the tins for my brothers and I had something relevant to the recipient (e.g., for me, the engineer, it was a snippet about Pierre L'Enfant).