As a Service?
I think people will move away from Windows because of the "service" model. I don't want my computer OS tied to being part of a "service" I have to pay for. The different editions sound reasonable but I would never by the home version just because of being the "guinea pig" for patches. I think Microsoft has some good ideas with this OS such as the start menu coming back but with Windows 7 extended support till 2020 then business will be slow to adopt Windows 10. Windows 7 is the new XP!