I find it hard to come up with compelling reasons to purchase a Windows Phone at this point and time. Going by what I'm seeing on this site (WC) as of of late, any substantiated "good" news has dwindled considerably. But then, if you don't mind living with uncertainty or on the edge, by all means go for it. Just don't expect miracle and know what you are getting into.
Every time I fire up one of my WPs it don't take very long to see its shortcomings, pretty much can do the basics but beyond that, we're left out in the cold. Out of all the phones I have ever owned WM has been the most problematic bar none, 10 has gotten better yet many little things still crop up that diminishes my experience. Apps that act unpredictably, loading, resuming and generally, the overall lack of fluidity with the OS.
Then there's the instances (for me) when a browser cannot take up the slack if an app is unavailable. Experienced this on multiple occasions and becomes very frustrating seeing "sorry, your browser/OS is unsupported". To-date we have found no solution/alternatives to getting around this, plain and simply we're left without and no recourse to resolve. Can't think of another device of late that has ever left me in the lurch like that, and these sites I'm trying to access are not fly-by-night ones being very well established.
If you were to buy a WP my reluctant recommendation would be the 950/950 XL.