My library just got rid of Saga of Swamp Thing book Six right when I finished book five.
They got rid of it because it wasn't checked out for a long time. I guess they didn't think why the last book in a series may be checked out the least. Now I've got to buy a copy, which then means I'm gonna end up buying all the other volumes.
That being said I'm quite happy at getting to have read volumes 1-5 for free as opposed to not at all.