I'm unsure what the "substantial data" you request on on my needs would consist of. I've fortunately (or unfortunately) been subjected to my vagaries 24x7x365 for nearly 4 decades, so I feel I have a fairly reasonable grasp on what my needs are.
I buy products that help me accomplish some task, which might be anything from getting productive work done, to exemplifying some new or compelling technology, 90% of them with my hard-earned cash. Over my working life the tools I've used have been all over the map, and I've long since given up on "fanboyism" in the interest of getting things done. Currently an iPad is generally the right tool for what I need in the tablet space, and in the past it was a Windows Tablet PC, and way before that a Pilot 500. If MSFT could work out the "kinks" in the tablet side of the experience, and provide an 8-10 hour battery in the current form factor, I'd be all over it.
I try to share how I work, and the tools I use since the days of being chained to a single desk/physical location are drawing to a close for many workers, and while I'm probably more mobile than the average bear, I hope my take on the tablet market sheds some light on those trying to determine how to integrate these devices into their personal workflow or company.
I thought it was pretty clear that this article detailed why *I* won't be buying Surface Pro, and the rationale articulated was about how it would not work for *my* usage, but if that wasn't clear I apologize.
Keep Up with TechRepublic