I am currently reading my way through a long list of science fiction and fantasy titles. (http://www.npr.org/2011/08/07/138938145/science-fiction-and-fantasy-finalists if you are interested in the list).
I got to catalogue a volume worth $3000!
A 1935 limited edition of King Arthur and his Knights of the Round Table, illustrated by Arthur Rackham.
Sigh, some days I love my job!