Thanks to everyone who responded. Clearly, I had not looked at prices first. Wow, even with shipping to Canada it's a good deal. For the price diff I think I'll just go with 12awg and not ever worry about it again
If you want a Canadian place that is reasonable, but not Monoprice cheap unfortunately, try these guys.
Infinite Cable I've used their HDMI cables, plates, keystones etc.... and never had an issue.
I find bringing in from the US can be cheaper, but only when the price difference is more than $50. Under that is luck of the draw. If you do order something from Monoprice, see if they'll ship using USPS as the border fees are alot less.