This is why they offer the extended warranties. You're taking the risk of your machine dying and not being able to have it replaced free of charge by opting out of the extended warranty.
Technology isn't perfect, nor will it ever be. It can fail at any given time, regardless of how well you treat your computer.
The above is correct and understandable.
The issue here is that there are many users facing this problem, many of
them after replacing the logic board 2,3, or even 4 times!
This leads many of us to think that this may be a manufacturing issue
or, at least, a quality control problem. Maybe we are wrong, we are not
able to prove that, but there are many signs leading to this conclusion.
I would happily agree to pay a moderate price for a logic board replacement
(since I use my Macbook pro for work, I took the risk of not buying
AppleCare, cannot afford a new one right now, and really need the ExpressCard slot),
but not after having my 2nd logic board fail with only 4 months of use,
presenting the same symptoms, and being aware that many users are facing
a similar situation.
This isn't just an issue of an almost 3000€ "pro" product (2.3 GHz 17'' matte
screen Macbook pro) that fails 2 times in 2 years and 3 months, but also
the failure of Apple to provide a flawless, working machine, even after the logic
board replacement.