I personally enjoy a break from the regular themes of gaming to toss holiday themed sessions at players. I even had a "Talk Like a Pirate" themed session one year. Obviously this is not for everyone. My campaigns are on the lighter side of serious. I'm sure that other DMs and players would not enjoy having their current experiences interrupted as it were by a mood altering change. I can understand completely. In the mean time I'm still going to have my players take on giant gingerbread men and colossal evil pumpkins. Treats for everyone!