I'm also excited about a non-x86 architecture on the desktop again. Monoculture is bad, and I find x86 to be especially ugly...
As for switching... I'm increasingly unhappy with Microsoft's complete disregard of user privacy. Apple isn't perfect with that either, but IMO much better at least. For my use cases, Win and Mac are the only credible options due to software availability. So to get away from Windows.. there's not much choice these days.