Here in the U.S., it's $25 a coin, plus a $10 handling charge (for the entire batch), plus the shipping, I try to send 40-50 in a batch so net it comes out to around $27 a coin for me... I think the shipping is a good bit higher for you guys up North, so not sure how much the net would be for you, but here's how I would look at it for you, if the coin would be a shoo-in 64-65 brown, but only qualify for a 62-63 with the Canadian TPGs, it would be seriously worth looking into sending a batch...
The obverse on that coin you posted looks like a sure 64, remember that they factor in eye appeal, so make sure you factor that in... Very nice coin, what is the date?