I'm in favor of being able to accept a library fine to keep a book a bit longer - no one wants to get to the last page of their book only to find that OOPS GONE and you're now #318 on the waiting list.
On the other hand, instituting the fine for people who don't return the book is, in my opinion, needlessly prohibitive. If I finish my library book on my Overdrive app on the day its due, I'm not going to rush home to tether myself to ADE so that I can return the thing. Once again, new formats do not have to inherit the flaws of the old formats - automatic returns is why ebooks are BETTER than paperbacks.
I also don't much like a X-checkouts-per-year theme. It's not in keeping with libraries in general.
If you feel like libraries deserve more money, you can always cut them a check or lobby for higher taxes in your area to support them.
