A touch screen on your desktop

With the Windows 8 Consumer preview, I've been thinking about touch on the desktop. I'm finding the special corner areas a chore to mouse over to, but I've heard that this is greatly alleviated on touch devices where you can simply swipe to access these features. That got me thinking.

Do you think that the future will see low price, large touch screens in wide use as desktop monitors? What's the current state of this? Are they affordable? (I'm guessing not) Do they have good color reproduction or response times? Would it be too frustrating to have to lose desk space as a result of needing to keep your monitor within arms reach?

What are your thoughts?