Hey Andrew,
Only you can determine "peace of mind" ...are you a glass half full or a glass half empty guy? You need to read the warranty before you sign on the dotted line. Like DragonSubie mentioned ...and I would agree with him ...the warranty is most likely not a 100K warranty but a warranty covering the car until 100K. What are the deductibles and what are you required to do in order to keep the warranty active ...like the car can only be serviced at a Subaru dealership while under this warranty ...and what are things that will void the warranty. What do "they" mean by "complete protection"? Buying an extended warranty basically means you're betting the car is gonna be a maintenance nightmare; the warranty company has the actuarial information on their side telling them otherwise ...it's how they make money and they wouldn't be in the business if it didn't make them money ...it's a gamble either way but, hey, that's life.
OTOH, suppose you took that $1700.00 CDN you're willing to give to some "big evil money grubbing warranty company" and paid yourself with it. Yeah, just start a maintenance "slush fund" ...or call it Andrew's Extended Warranty ...and $1700 is a good place to start. Stick it in your bank account ...set up a separate savings account just for this ...and auto transfer, say, $100 a month. In 6 months you'll have $2300 towards any repairs; in a year you'll have $2900 to show ...plus any interest the account earns. You can let your fund grow as big as you want because it's your money. Use it as you see fit ...maybe you can cover a new set of tires or other less expensive regular maintenance ...save the slush fund for the big ticket items. Whatever. But unless you garner over $1700 in repairs in the next 50K klicks ...the warranty company "wins". And the idea you'll have no out of pocket expenses, as was posited by aperegudin a couple of posts above me, is false; he's just "prepaid" his maintenance costs by buying the extended warranty; if the sum total of his "no cost" repairs don't exceed the cost of the warranty then guess who's come out ahead? So if you sign up for the Andrew Hall Extended Warranty program and when your Fozzie celebrates it's 100K birthday and there's money left over in your "slush fund" account ...guess who wins then? Me, myself and I like winning.