Nobody I've ever known has owned one
Hi, Pleased to meet you.
Of course, because it's a craptastic piece of shite that costs too much
There's a lot of clone devices out there. Funny enough when you match the specs up they cost just as much, except half the time they end up having quite a few dealbreakers in the process. e.g. the HP Spectre X2, frigging horrible keyboard and touchpad, horrible sound, battery life is miserable considering it has the same size battery, but one killer feature it does have is an LTE modem.
I've never seen one used in a business setting in the wild
My wife has taught at 2 schools which use them, one for just staff, the other for staff and students. It is the main PC used by most of the Queensland government, the docking station for it is actually quite awesome in this regard because it gives users an instant second monitor. We just bought 15000 units after a 1 year trial (I'm currently in the chemical industry).
Oh, I'm sure they're out there, just like are probably people still clinging to their Zunes
Microsoft is making billions in revenue on the Surface line. Yes they are definitely out there. Maybe you should look a bit more. Unlike Apple users we don't actively go around and flaunt them. Okay I may have on occasion done so, and when I did I was met with "oh yeah I got one of those" though I like my blue one better than my colleagues purple one. Why do I have one? Well it was shown to me by someone else.
But hey if it is such a spectacular failure than surely no one would try to copy it right? Surely. We wouldn't see HP or Dell release clones. Nor would Apple consider creating an iPad with pen support. Nah. Zune style failure. Yessirreee.
Anyway at least now you have met someone who has one (Surface Pro 3).