Your thinking is good. Just consider what the general public ever use photographers for. The answer is potraiture, weddings and a little pet photography and maybe some property shots. All other uses of photographers are generally for commercial purposes and it is commercial where the steady income stream will come from.
Originally Posted by Perry Way
Business to business is generally far more profitable, and especially if you can get big clients as they will be happy $1000 plus on a days shooting whereas the public won't. You just got to work your nuts off to get the clients.