My instinct says that isn't rude, but I still feel rude. My husband used to work with a couple 20 odd years ago. They were very good friends of ours for years, but we have seen them once in 10 years. Every year they send us a Christmas card and I am so over this. It has no news, just their Merry Christmas and names. For all they know, we could have moved, added 10 babies to our family etc. They live 10 minutes away and have not bothered to call in or phone (which is fine as friendships sometimes fade). Two years ago I did not reciprocate, but last year I did. Well that dratted card arrived today. Is it rude to not send a card? I was bought up to always send off cards to everyone that sent me one.