I'm with you on this one. Whereas there are a lot of small boutiques here (I'm in Toronto), I haven't found any sources for online shopping based in Canada. This is a bummer because there are some really excellent deals online, but after shipping costs, not so much. For example, I recently found online a hard to find scent for $40. After shipping costs, it came to around $60. No thanks.
Let's keep our eyes peeled and we'll see what we can come up with.