My DH and I have discussed this and we're not all that keen on the idea on Santa. Part of it is the "lie" and part of it is that it's not the true meaning of Christmas for us. I think the spirit of Santa is good, as in giving to others, but often that gets lost in a very long list of "what I want for Christmas".

In the end it's completely up to you guys no one can tell you want you should and shouldn't do. It might pay to explain that some children believe in Santa and not to spoil their fun....but in the end all kids find out!