"It is hard to see how stock duplicating could be calculated at the same or higher cost. At the rate of 75 USD per hour, assuming full 8 hour days, a duplicator would gross over 140 thou per year."

Ok 140K gross but what net? How long does a business last on 140K plus a year? Fajen made a million a year and went under. It is not all profit. Overhead including rent, electric, Heat/AC, Federal, State and Social Security taxes, property taxes, inventory taxes, Now healthcare ins., unemployment taxes, wear on equipment, etc... will all eat up a chunk. If you do not price your work out to make a real profit you will fail faster than every these days.

If you want to settle for a $20.00 an hour job be my guest. I rather pay top dollar and get good work than find a bargain, save a little money and work like a dog to make it work. You get what you pay for if you are lucky.