Out to Lunch? I think you need to look at the land they need to cover before you start yapping away. Iceland is also the size of the State of Kentuky. I would assume covering the parts of the Canada which are populated or needed it would be a bit more than that.
For the area they need to cover I would not be suprised if they only need 50-75 towers which are probably privately owned and rented out to all the carriers so they would have no big expenses, no maintance and just be paying rent like a store lease deal.
Have you ever been in the industry? Have you ever seen the costs for things? Or are you just going by a trip to Europe and a few pre-paid phones you bought?
Out to lunch....