At first I was excited by bash for Windows but I am still not switching. You know why? Malware. Ransomware. I have many layers of defense from various harm (OpenWRT router, uBlock being the two most important ones) but the biggest defense I have is that Windows programs simply do not run on Linux and the Linux market is not big enough to bother with.
And I know many of you will say, oh that's not a problem, it never happened to me -- I will say good for you. But I need my work computer to, well, work, constantly. Yes, fighting a broken Arch Linux after an update is bad but not as bad as fighting a downright malicious program.