Like most readers, I continue to buy books even when I have a huge pile of unfinished books at home (I really can't be left alone in a book store). (catherinechicotka.com)
These include: Unfinished books by established authors, often because they died before completing the MS; books by subject experts (not necessarily well - known ones) who are very knowledgeable but don't write well; and just about any book by, or in some cases about, a celebrity. (accrispin.blogspot.ru)
Filmmaker Raoul Peck focuses on James Baldwin's unfinished book Remember This House. (inc.com)