Exactly, we've been the bread and butter for Microsoft for a long time. Yet with Windows 8, we're starting to feel like that's just not true... at least that's the sentiment when I talk to some of my colleagues. For instance We built our main product using WPF, today WPF is all but discontinued. XAML is bigger then ever, but only if you want to make a windows store app.
If I leave .NET it's not going to be because some hipster writes an article about python, and how .NET is written by children writing kludge. I know that's not true. It'll be because Microsoft stopped doing the things that made me keep using them.