This is the only place I can actually see a Windows 8 (non-RT) tablet making sense over Android or iPad. It actually COULD be your desktop. Most office folks do not need the horsepower available to them. With mounted network shares, an LCD panel, a dock, and a KB/mouse, a tablet could be a viable low-power workstation that slips easily into a backpack, purse, briefcase, or carried by hand. If you're a frequent meeting attendee, this is ideal. Perhaps more ideal than a laptop.
BTW, notebooks at my (large) company are close to 1:1 with desktops. In many departments, desktops are rare. For some, there's no expectation of out-of-office work, so the desktops outnumber laptops. Hence the 50/50 average.
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