Excellent post, xstatic. Green-bar points for you. Although... the numbers don't quite add up unless you have a collection of 140 Seagate or WD drives running, or for some reason, inexplicably bought 140 failing maxtor drives,

I still agree with what you're saying, in general, although I haven't noticed Maxtor to be particularly bad, or Seagate or WD to be particularly good.
A similar perspective: I've had numerous WD, Seagates, Maxtors, Samsungs and Hitachis. The only majorly manufactured PATA or SATA hard-drive I've never owned several of is Fujitsu.
ALL hard drives die eventually. It totally sucks ass if you don't have backups, there's often no warning, there's no single manufacturer who stands above the rest in defying the nature of hard drives, and
the whole world has been waiting, for many years, on a major technology shift away from insanely fast-rotating, mechanical precision-critical, magnetic hard drives that fucking destroy themselves.


This is the livid voice of entirely too many all-nighter data-rescue/recovery expeditions speaking, if it's not obvious... The only thing you can do to prevent the suck-fest is religiously backup your data, or RAID-1 the drives with your work on them.
A few notes on external drives, which I think you are actually asking about:
- In theory, an external drive with a quality power supply and a proper cooling solution is a fantastically convenient device. In practice, I have yet to see it implemented. Despite marketing claims to the contrary, they all SUCK. I've had several external enclosures, (Adaptec, Vantec, Rosewill, Maxtor, WD, PowMax...just off the top of my head) and they have all either died, or just been completely unusable from the start. Their mortality rate has been literally about 100 times faster than if you just stuck the same drive inside the computer. This is presumably because the cheap power supply components, which are largely identical - even across different brands - that they use put even more strain on the already-fragile drive by under-powering it, and the lack of proper cooling just fries the things. I'm buying ten when somebody makes one that's not a piece of shit (pardon my language, if that offends).
On the other hand, if you hardly ever use your external drive (like just for making backups once a week or something like that), it would likely last for many, many years...regardless of the name painted on the outside of the case, unless the name is PowMax, that one was particularly nasty, in that it drew so much USB current from my laptop, even when using it's included power adapter, that my USB mouse would stop working when it was plugged in...ridiculous.
Just for the record, the longest-living drive I've ever owned that has been used
extensivelyis the Hitachi in my laptop, which is coming up on it's 5th birthday. I fully expect it to have a total meltdown any day. The most I've gotten out of an external was a WD MyBook, which lasted a little over 10 months (It actually died yesterday, and is likely the source of my apparent hatred of all hard drives, hahahahah...).
P.S. Seagate and Maxtor have been the same company for years, not sure if they actually have different factories, but I seriously doubt it because of the economic impact of maintaining two facilities vs one. Also, I'm pretty certain that the first 3 options in your poll aren't even hard drive manufacturers, dude. As far as I can tell, they're just "companies" who put WD, Seagate/Maxtor, Samsung or Hitachi drives in the previously-mentioned, likely pre-fabricated, death-traps-for-hard-drives cases. You could do the same thing and sell your "unique product" for the same, enormous markup that they do with no training, experience or special tools necessary.
I'm not exaggerating the situation there. Evidence:
$50 drive
PLUS
$14 generic case
PLUS
About 90 seconds of installation time
PLUS
some clever marketing BS about how you're the best putter togetherer of external drives
PLUS
A sticker with your name on it
EQUALS
Insane profits for...nothing!
Quite a profitable sucker/vulture-business, huh?
edit: My next experiment will be a LaCie, on xstatic's endorsement. I'll cross my fingers and hope for the best.
@xstatic: Do they actually manufacture their own drives?