Funny, I first posted this question 3 months after buying a Windows Phone. I used that same device until 2 months ago. I have never had a phone as well built as that. I still have it and use it for a media storage, running a developer version of Windows 10.
The comment about it being a 1% market share is exactly why many developers strayed from Windows. While the platform gained ground in other countries, it didn't in the U.S. I switched to Android recently and can say that while my new device is faster, the OS lacks what I have on my Windows 10 Phone. Everyday I find something I'm missing that my old phone had. My first web pop up pissed me off, forgetting that the Windows phone was the only 1 I've had that blocked that crap. Honestly, I'd have bought another 1, but I switched to US Cellular and they don't offer that option.
For those not liking Windows, you've got good reason. No apps and little hope of getting them will kill it off eventually. I just wish my Android had the options my Windows Phone did as built in items and that my Windows Phone had the apps that Android does.