I've had personal computers for years and none of them have been on corporate networks so I don't see how MS should care about me in that - and for actual businesses aren't their hardware turnaround times generally less than 5 years? Is this all worth it to shave off that 1%?

Cloud account, cloud storage, cloud applications, cloud content, cloud security, cloud messaging, cloud meeting, cloud moderation.

Everything will be in the cloud and connected with a subscription, paid or with ads.

Your computer will only be client connected to those services, and just as users getting banned from different internet services by breaking the user agreement, you will be banned from your computer for breaking the user agreement. The distinction between the computer and the internet services will be very fuzzy because they will be intertwined.

Also read this https://news.ycombinator.com/item?id=28059074