This 100x. A lot of employers (including several I've worked for) have strong security policies, and like have 4-5 nine uptimes; the security aspect, if your co

This 100x. A lot of employers (including several I've worked for) have strong security policies, and like have 4-5 nine uptimes; the security aspect, if your code contains a lot of valuable IP, is huge, and I would be rather wary of letting Github be responsible for my own IP for non-open source projects, rather than the more palatable choice of having control over it in-house.