Well, potential researchers will also have to weigh the possibility that they spend all of the time and effort to research other possibilities for it only to fi

Well, potential researchers will also have to weigh the possibility that they spend all of the time and effort to research other possibilities for it only to find out that after all of the licensing fees, etc they won't even be able to break even on the fruits of their research. It carries too high of a risk for financially-minded people (looking for a return on investment) to throw money at it.