This is an interesting topic for sure, but you folks in the states ain't seen nothin' until you've used the 407ETR (electronic toll route) in the Greater Toronto Area (GTA).
If you're interested in how a government can screw up something so profoundly,
THIS WEBSITE tells it all.
The bottom line is this: avoid this toll road rip-off if traveling in our beautiful province. The company that owns the 407ETR has entered into reciprocal agreements with the DMV's of virtually every province and state. They'll get your money. :M