OF COURSE they sold alot of Windows 8, INITIALLY...
Nokia, Dell, HP, ect HAD to have it to build the initial Windows 8 devices. But is that inventory of devices actually selling NOW? And have their orders for more Windows 8 fallen off? That's the $20B question here.
Look around for yourself or go ask someone in a cell company like Verizon, "have you been selling many Win phones?". Simple as that, a little time walking around here and there asking a few question will get you a long ways. Office Max, Staples, Best Buy, hey are Win 8 computer selling well or are people afraid of Win 8??? Etc. etc.
Of course they will try to sell you a device and hype it up. That's their job! I don't know anybody ditching their Iphones or Android device for Windows 8. And I doubt that this is "the one" that gets granny to finally buy a PC or tablet.