Definitely deserving of it's status in the Best of 2012.  Gillian Flynn writes with razor-sharp insights into these deeply troubled, hateful but somehow lovable characters.  The mystery is intriguing, the plotting ingenious, the research excellent, but what I liked best of all was the examination of one of society's most revered institutions:  marriage.  As well, the social commentary and satire of America's media culture had me in stitches at times.  It seems the author allowed herself to have a great deal of fun with this novel.  I have already ordered her first two novels and hope to enjoy them.  Although she states that she didn't structure this book to allow for a sequel, I for one beg Gillian Flynn to revisit our deeply disturbed duo. 

Question: When the book is more interesting?
Answer: to have a great deal of fun with this novel