That's the one thing keeping me off bitbucket is the fact that nobody else is there. Admittedly their pricing is better (especially wrt. private repos, something i'm still not ready to shell out cash for), but the interface seems to be a Github ripoff.

Github is quickly becoming the social network for coding - there's no reason to use an also-ran copycat who lacks the "social" part. (And this isn't to disparage Atlassian, they're one of my favorite companies!)