What Brian is trying to say is that many people have a misconception as to the value of logs.
The lumber we see in stores is a value added product; sawn, resawn, finished, graded and dried.
Then there is the fact that many production sawmills will not take urban/homestead logs due to the high chamnce of metal that will damage the saw bands.
Now if you have a long, straight (no kinks or sweeps) defect free (no knots or cracks) log you may be able to find a veneer mill that will buy it from you.
Most of the people with small mills in my area do work for pallet companies or truck bed operations. They get maybe 20-30 cents per board.