Not sure of your point
I am not saying that they are all still running - most of them have gone to the great computer graveyard in the sky long ago. Though I do think my Powerbook 120 with 2 megs of RAM is still out there somewhere. My point was that during their typical useful life (about 3 - 4 years, though some lasted much longer) they all worked fine except the 17" MPB, and a Centris 610 from the late 1990's.
Hmm awesome stats mate, but i find that bit hard to believe.
Below is for laptops but you get the idea.
http://theappleblog.com/2009/11/17/apple-ranks-a-lackluster-fourth-in-notebook-reliability-study/
Thing is, components die, if you are telling me you did not have a HD faliure in 120 macs since 1990, no way! Sorry mate, individual components in computers are not that reliable, and that is nothing to do with Apple. I would dream to have a HD that lasted for more then 10 years.
I am not saying that they are all still running - most of them have gone to the great computer graveyard in the sky long ago. Though I do think my Powerbook 120 with 2 megs of RAM is still out there somewhere. My point was that during their typical useful life (about 3 - 4 years, though some lasted much longer) they all worked fine except the 17" MPB, and a Centris 610 from the late 1990's.