Just like people absolutely refused to give up XP when Vista (or even 7, for awhile) came out, same thing will happen with Windows 8 and W7.
XP was out for a while before the majority stopped saying they'd never switch to it because they loved 98SE. It was too slow and bloated, looked funny etc.
What changed between XP and Vista being released is that lazy journalists started picking up online bitching and releasing it as news.
I ran Windows NT4 when everyone else was running 95 or 98. Then switched to Windows 2000 as soon as it was out, then XP, Vista & 7. But the story doesn't end there, I'm now running Windows 8. It's been a relatively painless move. I find the low price for upgrades interesting, it's not a tactic they've tried before.
On the other hand I've tried running Linux and I don't get what the fuss is about. It runs on my NAS, my TV, my router & my phone, but I don't see it ever running on my desktop. I tried it before I switched from an Amiga to Windows and I've tried it multiple times since.
Operating systems are like religion & I'm an atheist, so I'll stick with Windows and leave all the fanatics to their one true OS.