We send out an astounding 250 each year. It is the single largest line item in our Christmas budget. All of our friends do the same. So many people on our list...college friends, grad school friends, neighbors, relatives, friends from work, friends from old jobs, friends from volunteer activities, sports teams, etc.
I must admit I am a HUGE fan of the Christmas card. I know they are not for everyone but I LOVE receiving them each year. One of my favorite parts of Christmas.