To tweet or not to tweet

I have awesome photos of the calamity jack release party, but I've been working crazy hours on a deadline with the Super Secret Project, so I haven't had time to post them yet. Maybe tomorrow. In the meantime, a question: Should I join the growing hordes on Twitter? I have a facebook page, but I update about once a week and spend very little time there. I need to conserve where I spend my time, so family and writing take precedence. But everyone I know just raves about Twitter. What think ye, gentle readers? Worth the time?