Your main point is good, Fushigi, but in there you seem to have fallen for one of the biggest marketing lies the industry has seen in recent years. The line that Maxtor, WD, et al are "aligning the warranties with the rest of the box it's likely to come in" is a pure, simple lie: repeat lie put about by Western Digital (and possibly the others too, but I haven't seen it said by the other two). So far as system warranties go, the standard warranty is two years, and had been for many years. If my memory is to be trusted, we felt obliged to double our own standard one year system warranty because so many of our competitors had already done so and we were starting to loose sales because of it back around about the time that the 486DX/4 was giving way to the 5x86 and the Pentium-90 - i.e., about 1995 or '96. The standard specialist computer shop warranty is not one year, and has not been one year for almost a decade. The standard major OEM warranty (IBM, Hewlett-Packard, et al) is one year, but they do not buy drives on the open market anyway, they buy by direct negotiation with the drive manufacturers. In other words, the standard system warranty for standard wholesale channel drives is two years, and the industry standard warranties on other components is trending up not down.
Examples, major components first:
Motherboards: Three years or two years for nearly all makers. e.g., FIC, Soltek, ASUS: three years. Gigabyte, Epox: two years. A few still do twelve months only, they are, almost without exception, low-end no-name makers.
RAM: depends on grade: A grade RAM is usually lifetime warranty, or else five years. (Legend, Crucial, Micron, etc.) B grade RAM is mostly twelve months. C grade RAM, you are lucky to get any warranty at all, though DOAs will usually be replaced.
Video cards: The majors all offer long warranties. Three years is typical. (e.g., Leadtek, Hercules, ASUS, MSI.) The no-name generic makers used to all give twelve months but even amongst them there are now quite a few exceptions.
Monitors. Three years is all but universal. Only in some cheaper LCD screens do we find exceptions.
Hard drives: Guess you all know this one by now!
Minor components:
Case and PSU: 12 months
Floppy drives: 12 months or two years. The better brands (Panasonic, Sony) give two years. Maybe the others have followed suit now.
Optical drives: Traditionally twelve months, but trending strongly towards two years. Already almost half of the better brands (Panasonic and Lite-On come to mind) have a two year warranty. Sony are an interesting stand-out - but then, I'm tempted to relegate Sony's optical drives to the second rank now anyway - they do seem to have slipped from their former glory.
Keyboard and mouse: mostly twelve months.
Sound card: twelve months.
Having said all that, I don't think I'd be too worried about a three year warranty for my SCSI drives. By the time a drive, particularly a SCSI drive, is three years old, it's a long way off state of the art. For people running arrays it could be a real problem, I guess, but for me, I'm not too fussed. In any case, the only time I ever needed warranty service on a SCSI drive that was more than three years old, the company had gone bankrupt anyway!