I celebrated Hanukha rather than Christmas,so this is a moot point with me!
I did take my son to see Santa though when he was little,but he never seemed to think he was real once he hit about 5 or 6 years old! My friends have always told me he was a wise old man in a small boy's body!
Having just read all that through,it almost sounds sad,but truly,it was anything but!!! I recall so much fun and laughter in my own upbringing,as well as the childhood years of my son,that Santa and Easter Bunny were definitely much loved characters,but in story books rather than in real life!!!