Killing XBox brand and not killing Windows Phone? I don't understand. WP8 is getting numbers hugely thanks to very cheap Lumia 520, which, to my understanding,

Killing XBox brand and not killing Windows Phone? I don't understand. WP8 is getting numbers hugely thanks to very cheap Lumia 520, which, to my understanding, is barely generating any profit or is even generating loss. And even then I haven't seen anyone who said "Wow, this is great, my next phone must have WP in it!"... a priori fanbois aside.