to be fair what he is saying is if you treat WC as a business, and take it to it's full potential you can make a lot of money.
i have no doubt they have hit those max daily turnovers that they quote. i myself did over £800 on a day before christmas this year. it is definately not my typical day tho (it practically killed us!), and £850 is not Concept2Os typical day also. it does show what you can achieve.
WC can be any type iof business you wish. can be extra cash on the side, or it can be a money making machine run from an office. Julie and Carl @ concept 2O have developed their business into a a money making machine.