The older I get the more I'm inclined to agree with him. Especially when you consider how much the whole card thing feeds into the consumerist agenda of Christmas. That said, in these days when written correspondance (that's not in the form of junk mail or a bill) is few and far between maybe its a time to revive the tradition of putting actual pen to real paper and penning some thoughtful words to someone special.
I have long since given up on handmade Christmas cards (way too much guilt for not completing them and who needs that stress?) but I have actually gotten round to buying some cards this year. Whether they actually make it to being sent is a whole other issue though!