The Princess Bride is $3.99 CDN
at Amazon Canada.
I'm torn. This is the first time in ages I've found a book I'd like to own with a major price difference between Amazon.ca and Kobo.ca. I could do a price match, I suppose, or I could just use the Apprentice plugin in Calibre. I dislike buying ebooks from Amazon unless they're Kindle exclusives though (a silly bias, I know, but real nonetheless.)