I think the global economy and the Wal-Marting of everything brought about the demise of the care about quality.
That along with corporatization, mass marketing, the throw away economy and the hype of the need to have every toy on the market, made people care about quantity over quality.
Almost nobody believes ANYTHING should last more than 5 years any more. OR even care if it does because they have such a short attention span they become bored with it.
I think it's a pervasive mindset that has permeated every part of modern life.