I'm a little surprised that there isn't a "buy to own" option in my library's ereader. While I would certainly worry about the perverse incentives that such a

I'm a little surprised that there isn't a "buy to own" option in my library's ereader. While I would certainly worry about the perverse incentives that such a feature would create (such as reducing checkout times to maximize the chance someone starts but doesn't finish a book), it seems like a win-win-win: publishers can get sales via libraries, libraries can get a cut of any revenue or lower costs, and users can keep reading the book with page location and metadata intact.