For the longest time EB had a giant stack of the books and they wern't selling. And truthfully who the heck, other then videogame nerds, would want to READ a book about VIDEOGAMES?
But heres a link to a place you can get the hardcover 1st edition (it ends pre-N64 days):
http://half.ebay.com/cat/buy/prod.cg...1856&meta_id=1
or if you want the Softcover:
http://half.ebay.com/cat/buy/prod.cg...1856&meta_id=1