easier collaboration with others that you need privacy on. A backup of your repos(though you should have backups on this too). a canonical version of your repos

easier collaboration with others that you need privacy on. A backup of your repos(though you should have backups on this too). a canonical version of your repository with read access for your team but commit access for only a select few. I am sure there are more scenarios but this is just what I could think of in a min.