OK folks, I am a realist here. What I see to fully support Win8 is a whole sale replacement of all my LCD monitors. I can either replace them all at once, or over a 4 year replacement cycle of our 300 computer units. Either way, in the end, I am going to be filling the landfill with 600 LCD's. If the industry had been smart, they would have ceased production on non-touchscreen LCD's a year or two back and been forcing touchscreen capable monitors on us since then as standard feature. LCD's tend to last long time, and as such, as we bought new larger units in the computer replacement cycle, we just added the larger to the existing smaller to end up with dual displays on each workers desktop. In the most recent year or so, we haven't been ordering LCD's at all, just new computers. It's going to be a hard sell to get me to buy 600 new LCD's and trash 600 perfectly working LCD's just to upgrade to Win8.
I suspect most business environments will have the same attitude as I. I don't think Win8 is going to take off on the average employee's desktop.
Win8's success will only be in the public sector, where many are looking to abandon their desktop computer for a laptop/notepad/etc for greater portability anyway.