I have a lot of half-finished projects kicking around that I would love to start on github, but I'm concerned about privacy and it certainly isn't worth it to me to pay $7/mo rather than keeping them on my Dropbox.
I haven't checked out BitBucket as I kind of thought GitHub was the only game in town, but will check it out. Would be nice to get these projects off my machine but not make them public.
edit: ohh and I'm just starting on BitBucket and it both imports from Git directly and defaults to private. Awesome.