It's a very reasonable $9.99 at kobobooks in Canada ... and you can use a promo code if you have one to lower the price even more. Woo hoo! Finally a bargain for Canadians!
Or, it could be a catalog error:
http://www.kobobooks.com/ebook/-Danc...OUw/page1.html as the price on this page says $18.79 (check out shows $9.99 as does the front page of kobobooks).