I liked that! That was a neat story Will. America has definitely been built on such simple principles. I wish things really were that simple, but life in the dirt business however, will take much more than just a dump, or pickup and some ambition.
Generating a large enough profit margin just to stay in business from the delivery rate would be very tough. If an owner/operator average 15 loads per dump, per day(above the average here), you are kickin some butt on deliveries! If you do the math though, that isn't much capital to work with. A very large percentage(about 90% or more) of your customers, are other contractors, or home owners that will spread the dirt themselves.
I used to be a foreman for buddy that had a full time dirt business as well as a concrete company. Pug mills and wheel loaders are definite necessities in this business if you want to make any real living at it. These will take huge amounts of cha ching to get! Even then, the mills are very time consuming, and labor intensive due to weather, maintenance, relocating, and set-up/tear-downs.
Some other pit falls will be finding developers that will even sell you their top soil in a marketable location. Also, estimating and negotiating the cubic yards of material any given plot of land will yield is definitely not for the beginner either! My old boss learned his guesstimating skills from his father who had the business before him for 30 years. He still gets burned estimating once in awhile.
Here's mud in your eye! LOL

Tim