Other than those stuck with 8, why on earth would you want to?
Like anything else having to do with computers, it all depends on what you want to do with it.
I personally don't have any compelling personal need to run Win10 -- Win7 works fine for me and I like it better. But at work, I have to support many users who are running Win10, and software developers who are running Win10. So I have to be conversant with it at least. I have a Win10 VM at home for those times when I need to check something out on it.
But other than that, I'm sticking with Win7 in "cold, dead hands" mode. Come Jan 2020 when the security updates stop, I'll just use it for things that don't require internet access; I've got Linux and Mac computers that will carry me forward.
And if the time ever comes that an application program, that I absolutely must have, will only run on Win10, I have my VM.
So it all depends on what you want to do with it.