GitHub's most expensive hosted plan is $200/mo with unlimited users. Their self-hosted version is a minimum of $20k/yr ($1666/mo) for 20 users. They also ship

GitHub's most expensive hosted plan is $200/mo with unlimited users. Their self-hosted version is a minimum of $20k/yr ($1666/mo) for 20 users. They also ship GitHub Enterprise as VM "appliance" image, which is probably the only sane way to package up a system that wasn't originally designed to be run in many environments.