From AbeBooks.com, a list of The Ten Most Expensive Science Fiction and Fantasy Books Sold in 2006.
Some unexpected titles and interesting package deals.
Where Late the Sweet Birds Sang
Near fine original manuscript package of this 1976 Hugo award winning novel. Contains: Original ribbon copy and carbon-copy typescript, final draft, setting copy. Signed with a few corrections in authors hand. Also containing file folder with maps, charts, diagrams, rewritten section and correspondence, all pertaining to the novel. Sold for $3,975