Should I get the extended warranty?

[flintmica]

Hey all!

I'm new to the site and just bought a used 2009 Yaris Sedan w/46,000 miles on it for 11,000. It's my first Toyota ever, which I'm pretty excited about, especially after owning a Chrysler Cirrus (a money-guzzling crap car) for the past 7 years. After much internal debate and reading this thread, I opted out of the dealership's "wrap around" extended warranty package, which would have cost me an additional $1550 and would've only lasted 4 1/2 years from the previous owner's original purchase date or 100,000 miles on the odometer. The car still has 12,000 miles to go before the original factory power train warranty is up, so hopefully any major problems will arise before then.
Hope I made the right decision, since although the vehicle had a clean car fax record, and my mechanic friend said the engine looked great, it's impossible to know which repairs have been done in the past, since the only previous owner was a rental car company, who probably has it's own mechanic on site!