With Banyan, your data will always be open & you're free to take it with you anywhere. If you want to move your repos to github/bitbucket/another service, you're easily able to do so
[1] - http://techcrunch.com/2013/04/08/confirmed-elsevier-has-boug...
By the way OSF costs money if it is done by scientists. Those scientists get paid by someone. They spent shit ton of money (in form of salaries + time) building it + publishing it. Science works on government grants, i.e. taxpayer money. It is actually a fairly profitable industry, and NIH grants are the biggest contributor to capital expenditure of US Research Universities. The 55% overhead coming out of each grant is basically the "profit margin". Calling something by a different name doesn't make it so. Your github profile says you're at MIT, around Cambridge. So am I. What do you think pays for all the shiny buildings around Kendall? It's not just philanthropy.
I'm not sure I'd call grant income that gets reinvested in infrastructure and educational expenditures "profit." Not only do private corporations buy shiny buildings, but they also have a legal obligation to make as much money for their shareholders as they possibly can. MIT doesn't.
> Not only do private corporations buy shiny buildings, but they also have a legal obligation to make as much money for their shareholders as they possibly can.
This seems to be a popular belief, but it's simply not true. Private companies have no legal requirement to make profits or pay dividends. Even public companies, do not have to by law, maximize profits ("make as much money").[1] Corporate officers do of course, have an obligation to act in the best interests of the company, and have maintain certain fiduciary duties.
[1] http://skeptics.stackexchange.com/questions/8146/are-u-s-com...