Common Courtesy

Is it just me, or do people seem to be lacking common courtesy these days? My gripe for the days is on gift giving. I know that with the digital age thank you cards seem to be a thing of the past, but I would at least like a thank you. There are several ways that you can get in touch with me and all I am asking for is a simple five second "Hey, I got the gift, thank you."

I am tired of taking money away from my family to buy a gift for someone who doesn't appreciate it.