There's actually a publisher in the humanities that operates like this! Knowledge Unlatched funds monographs (i.e. books), then academic libraries pay a fee not to access those books, but to have them made available as Open Acess. It's actually been really successful in obtaining funds for open access publishing while circumventing the problem of people not paying for it because others might be: https://en.wikipedia.org/wiki/Knowledge_Unlatched