yes it is a sane approach from a marketing standpoint to use a DaaS model.
but I do not like the massive control an already problematic bug and error ridden os as windows tends to be ...has always tended to be..
I do not like that thought that M$ will be in even greater control of the end product I would have to use.
If they produced and marketed a monthly pay as you go OS:
-that wouldn't be a hot mess of problems with every update
-that they didn't change and rewrite the entire OS with every passing moment so as to give a modern approach (I really hate when a OS cannot just gently and incrementally introduce change folks can adapt to ...and instead force everyone into an immediate steep learning curve ..really hate that..)
-that respected the endusers privacy and security and didn't actively compromise it.
-that didn't try to exclude the use of other OS application use (lets see just how long it takes for windows to actively exclude them..)
-that doesn't need an even more Draconian grip on everyone..

then yeah ...sure I wouldn't mind.
But we are talking about M$ here..
We are not talking about the Benevolent Gandhi Operating System Corporation