How an Investor Views a Patent
"When in investor considers a patent, he sees it as a venture filled with uncertainties. The uncertainties include: Is the patent valid? Can it be proven invalid? Can it be designed around? Will the device sell? What will it cost to make the device? What will people pay for the device? What is the best way to make the device? What sources are the best for parts and materials for the device? What kind of people will buy the device? How many people will buy the device? The more uncertainties there are, the more risk there is for an investor, and the less they are likely to pay for an invention, or to license the patent."
From this Patent Pending post.