5. The Bay Psalm Book – $14.165 million (1600s)
The Bay Psalm Book is the very first book printed in British North America. This was done in 1650, 20 years after British settlers reached Plymouth Rock. Only 11 such copies of the book are known to currently exist.
In 2013, a copy of the book sold for a whopping $14.65 million by billionaire David Rubenstein. It is said that he frequently loans the book out to different libraries, whenever they require it.