Do you believe in Santa?

Recently we were having a discussion at KBS about whether parents should tell their children that Santa Claus is real. Several people voiced opinions along the lines of "How could you blantantly lie to and deceive your kids, especially because once they find out that he is not real they will be emotionally crushed." I agree with this sentimenet, but I think that for Christians there is an even more important reason. We also tell our children that Jesus is real and was born on Christmas, but his story is even more unbelieveable than Santa's. Once they realize that we were lying about Santa, why should they believe us about Jesus?