Gold, We can't forget about those millions of people who have been "treated" for cancer. They wake up every day wondering if it is back... a Recaf test every x # of months would be very comforting to those persons. Also keep in mind the cost that the insurance companies are paying per cancer patient now. $100,000 + /- If a Recaf test cost say $200 dollars and the imaging cost were say $6,000 dollars That would be a tremendous savings to the insurance companies per patient.