snip...
I don't think we create great pictures until were engaged with the subject, I think a camera is a secondary interest for great photographers.
Shoot what you love, the inspiration will come from within you and drive you forward. Nothing could get me out of bed at 4 o'clock to wait for a sunrise and perfect cloud formation over a pretty landscape, or to trek for miles and sit in silence waiting for a lesser spotted nut warbler, because those things don't inspire me, in fact they don't interest me at all. I can only push myself to create images of things that interest me. If the subject isn't interesting, the photography is pointless.