Very negative perspective from Ifixit .... my Macbook Pro has worked well in its out of the box configuration for well over 5 years, without the need to dismantle or upgrade ... it just works. I think I'd focus on that rather than 'what ifs' of failure.
Agreed avturboy. Apple make very reliable machines.
Milo Minderbinder, you have a bit of a history of uncalled for Apple bashing round these parts, its becoming a bit tedious. What exactly is the point of your post ?