Point of respectful dissent here. I've been using Windows 8 on two Asus UX31As simultaneously; one has a touchscreen, the other doesn't. I have found it pretty much just as easy to navigate and click via the touchpad as the screen, it gets very uncomfortable to have to reach over the keyboard deck to reach the screen (you get "gorilla arm!") and, finally, I soon found that the "tile" home screen, the only that seems cut out at all for a touchscreen, is a gimmick that I soon ignored and I use it just like Windows 7, which surely does not benefit by a touchscreen.
Just one man's opinion, of course.