I'm being more negative about 8 than I really am, but this sort of 'you're all scared of new things' rubbish is getting very old. How about saying something new?
Well said. The biggest performance difference in 7 vs 8 for "multi-tasking" revolves around core-parking which is easily disabled in Win7 via registry or "ParkControl" with no loss of power efficiency (simply because SpeedStep is so good). I'm sure there may be 1 or 2 people out there somewhere who are "scared" of upgrading but for most I know, it's a case of "I'll upgrade when I want, not when MS or a few geeks want and I'll do so for a tangible significant improvement not just another 'change for the sake of change'".
A lot more people buy into blind marketing hype than give into fear. "The Vista Sidebar will revolutionize how you work! OMG, look at those efficiency enhancing Sidebar widgets! Look at those Desktop Gadgets!" LOL.
Windows used to be flat. Then when everyone got used to it, flat was boring so 3D "Flip" was introduced. Now everyone's got used to that, suddenly "flat" is "in" again and Win+TAB Flip3D has been removed. And when Windows 9 / 10 comes out, it'll be the same thing - "Ditch the flat look and get a super 3D interface". And when Windows 12 comes out, it'll be FlatLook 2.0. And when Windows 14 comes out... etc, etc.