I'm all for receiving RRs too, there are friends and relatives too far away to visit, but I love to hear what they have been doing over the year, I can't recall ever receiving a bragging one. The one we send contains news of our triumphs and disasters treated in a hopefully humorous fashion, with appropriate pictures, and I get complaints from people if I forget to include one in their card. I always ask people to send me their news back.
I can't see the point of sending a card with only our names in, unless it is to people who know all our news anyway, and I feel frustrated if I receive a card from someone I haven't seen for ages with just their name in - I want to know if they are okay!
With my information governance hat on, do be careful sending out emails to a group of people with names in the 'To' field, you could be breaking the new data protection regulations. Put the names in the BCC field and they won't see each others. I'm sure I am preaching to the converted on GN, but I am horrified at the number of email addresses I have been presented with, by friends and even organisations, that I should not have access to! 