I refuse to get one. I already know my friends in real life, so why the hell would I want to look at their MySpace page to read about something they've probably already told me about over the phone. And I already know what they look like, so no need to see photos of them.
I also don't like the idea of people I haven't spoken to in ten years (and didn't like at the time) having an easier way to get in touch with me. Old boyfriends from high school can stay out of my life.
So no need for me to get one.

"I'm sorry, this is the fun-vee. The hum-drum-vee is back there." ~ Tony Stark

"My life is an elegant nightmare." ~ The Joker