I have to do it all the time.

I was resistant to cell phones at first, and my first service didn't help -- it was expensive. But since I changed services I love the little bugger. I've met guitar-playing friends around the country and because we all happen to share the same service, we can talk to each other for "free" (as part of our basic package). Email is fine, but now and again it's nice to pick up and talk to a friend.