Agree about the block heater. $195 is dealer installed so it included labour. If you have a minor amount of mechanical knowhow, you can buy it for $50 and install it yourself. I have had one, either factory installed (Dodge Caravan, Jeep Grand Cherokee) or self installed (Honda Accord & Odyssey, Subaru Outback, Lexus RX400h) on most of my recent vehicles. Should come from the factory for Canadian vehicle in my opinion, but as mentioned in the article, I don't see a lot of people using them even when they have them.
I use mine when it gets around 0 celsius, not because the vehicle won't start, but because I want heat faster in the morning (expecially on the 400h (hybrid) which doesn't heat up as fast as a non hybrid). The wife recently received a 2010 Equinox 6 cylinder as a company car, and the electric plug on it specifically states that it is thermostatically controlled and won't power the heater until it is -18c.
The heated park area on the windshield for the wipers works quite well.