Re: I'd consider Surface more of a super ultrabook than a tablet
"At least every one I've ever seen was being used as a laptop. People buy them over iPad and Android not because Win8 is a better tablet OS, but because it can run Windows apps and act as a real laptop which the others cannot."
I concur, people have played with tablets now and see the use of the form factor, but (in my case at least) get frustrated with the limits of "apps". Either the limits of "this doesn't work on a tablet OS" or the limits where the app isn't written with flexibility or reconfigurability in mind. A tablet form-factor with a fully usable OS (Windows I guess falls into that category) doesn't sound so bad.
I'll give a real-world, consumer example: My wife likes to take pictures of our kid/travels/life and put them into photobooks which she orders (snapfish, etc.) hard copies of. Are you really going to faff about with hundreds of photos, and arrange them on a tiny screen with your finger, and do all the fine adjustments to the layout on tablet? She certainly doesn't, it's back to her clunky old laptop.