Slide 4 on the intro is wrong, Pong came out in the early 70's, in the 80's we had the Z80 and the Motorola 68000 in most of our arcade games. http://www.nand2tetris.org/lectures/PDF/lecture%2000%20introduction.pdf
bad example BMW will not sell you a brand new car if you are a Canadian resident
this is a good read if you plan on importing a car.
CAD MSRP and US MSRP are like comparing apples to oranges. You really dont know what kind of savings you will have until you actually bargain with the US dealers.
$20k on a Subaru Outback is a huge savings IMHO for a couple hours of work.