Over at Relevant Magazine, Seth Hurd has written a good article about this high cost. He takes into account how this culture of social networking has played a large role in re-shaping what our friendships look like.
Here's an exerpt:
"Everything in life costs us something—in time, money, energy, love or emotion. Friends, real know-you-down-to-your-soul friends, come at a high cost. They guarantee a lifetime of broken hearts as we say goodbye, farewell and amen, again and again over the course of our lives.
Sadly, more and more people are finding that cost too high. Fifty years ago, the average person had three or more close friends and family members in which to confide. Today, that average has dropped to somewhere between two and one. The world-within-a-world of social networking has its benefits, but it’s also continually drawing us further into an “invent your own fantasy” identity and away from face-to-face relationships. This year, the average American will spend more time with their computer than with their spouse. As a study in the March 2009 International Business News so aptly put it, “Facebook, Twitter users among the loneliest in America.”
It’s easy to see why escaping to the social networking world is so inviting. On Facebook, you can hide behind a persona, be any version of yourself you can dream up. Online friends don’t borrow money and not pay it back, gossip or spill Gatorade in your car. They don’t show up at your house after just getting dumped and stay until 2 a.m. when you have to be at work in the morning. Online “friendships” are always efficient.
True friendship demands vulnerability. It requires that you rearrange your schedule, and intentionally plan time to spend with other people with no agenda. It demands choice, as sociologists agree that it’s only possible to have eight to 12 “real” friends, and attempting to manage more relationships than that only ends in a series of casual acquaintances. "