I send out way more holiday/ photo cards than I receive. I still use my wedding address list. I don't get nearly as many cards in the mail anymore. I like getting mail! I know cost of postage and the internet is part of the reason why people don't do it anymore.
Last year, I think I sent out about 60+ cards and got about 20-25 cards. I think I should reduce the number of cards we send out.
Although, since we moved across the country, Christmas is the one holiday where we make contact to people we haven't seen in a while.