Stock Photography: Is Volume The Answer?

I can remember when I was primarily an assignment photographer and occasionally sold outtakes from assignments on the side. Most of the income I needed to support my family came from assignments. Stock sales gave us a little extra. Demand for stock started to grow and it became harder for me to get assignments as I was working in an area where the competition was stiff from a lot of top quality experienced photographers. Buyers wanted to pay a little less than it cost to do an assignment. They liked having instant access to the stock image they needed and not having to spend a lot of their time organizing assignment shoots.