I on the other hand would rather not spend several hours faffing around trying to fix a problem only to discover it was due to an intermittent fault in a dodgy cable. Call that a subjective measure of quality but it's important to me. In fact I have a general rule: software's buggy enough as it is without the additional complication of random hardware failure so paying a bit extra for known good hardware is money well spent.
Of course, cables are a bit of a special problem. With the exception of that Google guy they're not something people tend to review. Then again there was a time that was true of PSUs.