I didn't get a cell phone until 2003, when I needed to put a number on my resumes for 2L recruiting. With the exception of its cancer fearmongering, this article makes a good case* for the freedom of not having a cell phone. Of course, it's not like calling someone socially is really done these days. I'd gladly swap voice minutes for unlimited texting, but as a grandfathered-in subscriber with an unlimited flat-rate data plan, change scares me.
* One side note: The benefits of a good connection with a land line are undermined by widespread use of speakerphone and cruddy headsets, both on other people's land lines and on their cell phones.