It is comical watching the two tech giants in the PC industry stumble all over themselves over the direction the market has moved in the past few years.
I dont think they get it either. Like when Nintendo came out and arcades throught people would still spend 25-50 cents a game.
As has been said in this thread Windows RT exists for strategic reasons only. It's there to compete with Android on ARM and to put pressure on Intel. Let's also not forget that Windows NT came out on Intel, MIPS, PowerPC, Alpha, and a host of other platforms before settling on Intel. Microsoft can and does take risks because they have a other businesses that can subsidize it.