Just found this forum and read this entire thread.
Your comments are insightful and intelligent (ie they agreed with mine) So I joined.
I believe the emergent system is at fault, not the individual players.
Here's my timeline for a product perhaps from several companies, much like the scenario put forward by 'honcho' somewhere upthread-
1) Idea is concocted and plans made to market it. There are hopes of profit.
2) Using the best practices of design and production it is built and offered for sale.
3) The market agrees that it is a good idea and buys in making the company money and a good name.
4) Here's where it goes bad. Other, or even the same, people agree that the idea is good, but they would like part of or more of the money. They take part of the market by producing a, possibly improved, definitely cheaper equivalent. To make it cheaper, there will be compromises which result in initially hidden degradation of performance in, for example, repairability or longevity. (There is another path here where the product actually does get cheaper AND better, but we're not taking that one. It is only temporary anyhow.)
5) The consumer cannot tell which is which (the flaws are initially hidden,) and so buys the cheaper one.
6) The product fails and the disgruntled consumer needs another.
7) Unfortunately, the original company, with the good name, has had to go downmarket to compete on price making many of the same compromises as the competitors they spawned. Several possible paths ensue, all bad, including going out of business, selling their name for what it is worth, becoming a me-too in the industry they pioneered.
8) At this point, either the consumer has no quality options or, having been burned, is unwilling to risk greater expense for product which may have the same failings as the cheaper option (eg the new Dysons or Maytags.) They continue to buy the cheaper product and the good product is forced from the market.
The only hope I see is education and an informed consumer.
It'll never happen. But at least I'm happy in my despair.