Why are you still using Windows 7 ?

Now from the title it may sound like an insult, but actually it's a genuine question, why are you still using Windows 7 instead of Windows 8 ?

I've been using Windows 8 for a few months and I've taken the decision to revert back to Windows 7 because I just believe it's far more stable and much better on a desktop PC. However, I love Windows 8/RT on tablets and touch enabled devices.

So I want to hear what your experience has been. Why are you still using Windows 7 ?