Yoinked directly from The Devils Kitchen from a rather excellent article by Bella Gerens, I think this really sums up a huge amount of what I find appealing and a good thing about the Libertarians:
Libertarians don’t fight with left-wingers, they fight with each other. It’s the only ‘mob’ you’ll ever see where the crowd hears a rousing speech and says to one another, ‘You know, I’m not sure I agree with him. He misses Friedman’s point about the fact that…’ and then argues all the way to the pub, where they’d all much rather be anyway.