Hi lozzy,
this entry by Theland at 0.4.49 has stuck with me as a pretty accurate insight. This is the first year I've actively not given cards out, my small way of lessening the paper waste. I like Christmas, but there's more than a glimmer of truth there in Thelands post.
sounds like you are a bit depressed, welcome to the club my friend, this time of the year makes me a bit sad, but off to see the brother and family tomorrow so should be nice.