If you haven't read Tim Ferris The 4-Hour Workweek get on that. This is a great book. His philosophy is to focus not on wealth but only on cash flow and time. Tim's financial measure of success is hourly wage. The wage must be as high as possible - with the understanding there is a limit to the number of hours that the wage can be earned in. Its basic business, but by making it the focus of your business plan - it drives a number of other events, specifically the need to outsource everything.