John Davis of the NKF ends with: "NKF will continue to oppose all efforts to sell the Gift of Life."
I assume that means the NKF will now oppose doctor's salaries and hospital charges. Surgeons must now give the gift of life without compensation, as must hospitals. But why stop there? Food is necessary for life, as is clothing, shelter, transportation...
Ahh, but those involve labor, you say! Of course we must allow those individuals to be compensated for their hard work. But what about oil out of the ground, then? The Saudis should, according to Mr. Davis's logic, allow our companies to remove their oil at no charge, since they, the Saudis, did nothing to create it or obtain it. It's a gift of Nature. Why soil the gift by putting a price on it?
Mr. Davis, economics tells us that we get more of something when we pay for it -- the supply increases along with the price. Forcing the price to be zero results in a low supply.
You may be right that purely altruistic donations would decrease, but the number of compensated donations would more than offset that slight decrease. We pay families a death benefit if their loved ones die in combat or in the line of duty as police officers, and no one complains that we "trying to put a price on their loved one." Why should a monetary thank-you gift to accompany organ donation be any different?