There are heaps of apps for Windows Phone, OK, maybe not the bank ones, apart from a couple, but for those, you just use the mobile site instead, the same as for news. BBC, NewsHub etc all work fine as mobile sites and you can pin them to the Start screen. Plenty of F1 apps too to use, they may not be official, but they work just as well, or if not better. Here are some examples of F1 apps - http://www.windowscentral.com/top-windows-phone-apps-keeping-track-formula-one-racing.
There are many Universal apps being developed, and with what I believe the ability to port iOS apps to WP, that will give a greater selection. How many apps does one need anyway? Oh and I can order pizza from my phone, Domino's has made an app now. As for controlling a receiver amp, I have something called a remote control which does that, works well surprisingly.
You are right, there are heaps of apps, just not many of the ones that are useful in our daily lives. And you can be as sarcastic as you want and jump on my examples but they are just that, examples.
Like you I was a staunch defender of Windows Phone having used it since it was first released in NZ, until I reached the point where the lack of apps was just too painful. I think you'll eventually reach that point as well.
I really hope that Windows Phone 10 eventually takes off, I really do, and I hope that developers start creating useful apps for it. Maybe then I'll switch back to Windows Phone. In the meantime I'll use Android.