Earlier quoted context omitted.
I don't understand your point. Surely people do pay for hosted storage, even when the code is available?
Looked at from the point of view of for-pay hosted storage, Github is astoundingly expensive. I have 94 megabytes of git repositories at work. Github would want $100/month to host that. If their software was all available and open source, I could host their software and my repositories on an $11/month Rackspace virtual machine, and still have about 7 gigabytes left over (or more realistically just stick it on a vhost…
Huh? My $7/month plan comes with 600+MB of storage, and my job's $50/month plan comes with 6GB. Where are you getting these numbers?