Why is there such a disconnect
between the industry, and the market ? It's painful to see, and certainly isn't great PR for capitalism and the free market.
PC sales have tanked, because nobody needs a new PC right now. I'm working on a 3 year laptop supplied by work. My wife and sons PCs are 4 year old boxes I put Win7 on. I see absolutely no need to upgrade. Possibly replace in the event of a failure, but even then, I have some older XP boxes in the loft that would probably do.
Now, Win2000 ran software that people (especially in business) needed to run. Therefore NT4->Win2000 was a big event.
XP ran software that Win2000 couldn't. So there was a push to that. The first crack in the dam occurred when Vista didn't really add anything to XP.
Win 7 came along at a lucky point in the cycle, and drove a few upgrades, but given I am working on a Win7->XP machine, it wasn't essential
So here we are today. Win8 just doesn't add anything people *need*.
It's like mobile phones ... in our household (we've not drunk the Apple kool-aid) we're all happy with 2+ year old phones.