I have a perfectly good Windows Vista Ultimate computer that they no longer write software for in many instances. I would never buy a computer that was 2 or 3 cycles behind if I planned on keeping it for any length of time.

Of course not everybody does tons of different software so your reasons may vary.   But even the web browsers aren't being made by Chrome for my computer anymore.

The hardware is outlasting the software.

And I have a Windows 10 laptop and find it just fine to work with.