Just not the photography you have to concentrate on , Unless you deleve into other avenues for selling your prints:

.TableMats
.Calendars
Coasters
.T-Shirts
.GiftBoxe's
.Birthday Card's

You get the idea Hint just sitting back deciding my market , atm yeah it's just a hobby , But best of luck to you all , It doesn't happen overnight n 1 more hint if you attempt most activities its best to haggle with a qualified printer , Ink is more expensive than gold ;)