> Okay, I think you're conflating service with rolling updates.Or maybe you are? ;-)
> My point is that if you ask someone using Win7 or Win8 today what the advantages of that OS is over, say, Vista or XP, they probably can't provide any. Or, from a different angle, if they can think of anything that they can do on their current platforms that they couldn't do on the previous one.
I don't really see the point of your point. You might as well say that if you only need to drive half a mile to the shops, then a Model T Ford would do the job. True, but not every Windows user is stuck in the past.
Later versions of Windows handle memory and resources better, so they are smoother in operation, don't need frequent reboots etc, and they're also more secure. The time savings alone are more than enough to cover the cost of upgrading.
UEFI machines also boot and resume much quicker, which most people would notice.
There's a whole class of new lightweight sandboxed apps. There's a whole new Windows Store. There's better voice and handwriting recognition. There's massively better stylus support, which is being exploited in things like the Surface Pro.
> Plus pretty much every ATM on the planet, IIRC.
But not the desktop version....
> My desktop, as you observe, is not a mobile operating system.
Sure, but desktops are not exactly at the cutting edge in a world that is going mobile.
The point of Windows 10 is that it's a converged operating system that runs on mobile phones, tablets, and games consoles, with "universal apps" that are adaptable to all three platforms. Windows 10 will also run on everything from USB sticks to high-end workstations.
> And I have been particularly happy with my OS not knowing where I live for a long time
Exactly how does Windows 10 know where you live more than XP knew where you lived?
> the new version has superior capabilities for tracking you isn't compelling (for most people, once you explain it to them).
The tracking isn't any different from what was already in Windows 8/8.1 except for Cortana, which can be turned off. (And is turned off by default.)
It's not something a sensible person would worry about unless they've stopped using a smartphone and already take extensive anti-tracking measures while on the web. Microsoft is only doing a small fraction of the tracking that's done by Google and Google Android.
Oh, you should also stop using bank cards, and loyalty cards, and avoid shops because they have CCTV cameras. And you can't own or drive a car because of numberplate recognition. This is the serious stuff. Even then, you'll probably be tracked by the US government, regardless of whether or not you live in the USA....