...I don't know about canada but here in the states game prices are comparative to compitition... Its a good thing Canada is a fraction of the US sales and a tiny fraction of global sales or that might be something to worry about...
EDIT: Oh, and with this one post I knock out your development cost reason too since you relate it to game prices... next time you want to make different points try and make them hold on their own or else one sentance can knock out two reasons,