When I first read about BookSwim, I thought it might work. I have a relative who won't use libraries because she knows she'll never get the books back on time, and she doesn't want to pay fines. And I heard a librarian tell a story about a mother and child at the library to pick up DVDs. When the kid asked if he could get a book, the mom said, "No. We never get them back in time."
So, I thought, BookSwim could be just the thing for those folks.
Then I realized that if you don't want to pay, say, an 80 cent fine for a book four days overdue, what are the chances you'll want to pay a $15 to $25 a month rental fee?