Say what you want about Windows RT, and how it's holding back Microsoft's otherwise attractive Surface tablets. (I have!) Rant, if you will, about how the Surface's relatively high pricing dulls its luster in the eyes of consumers. (You might want to point out how the original Surface RT's usage skyrocketed when its price was dropped to $350.)
Spill all the words you want. I'll just point to Microsoft's whopping $900 million accounting writedown on its Surface RT tablets—nearly one billion dollars—and say the numbers speak for themselves. But look on the bright side! Overall Surface usage is slowly but surely rising.