Github Enterprise is essentially a self-hosted version of Github. And there are ...

devy on July 30, 2015 | parent | context | favorite | on: GitHub Raises $250M at $2B Valuation

Github Enterprise is essentially a self-hosted version of Github. And there are similar open sourced alternatives like GitLab and Gitorious too. I wonder why those alternatives didn't threat Github Enterprise? First-mover advantage? Branding?