I was Linux-only at home (and, incidentally, also for work) for years but decided to keep the Windows install that came on my current laptop because I started gaming a bit more again.

I don't know if logging in will still be possible without phoning home and automatically logging in to various MS services every time, but if it's not or if MS just keeps turning Windows further into an online service (and the customer into a product), it'll probably be time to go Windows-less again.