[EmperorClobbersaurus]

I think that cloning will prevent such a future from taking place.
Researchers are already isolating stem cells from adults.
I believe that NewScientist even ran an article about how every tooth has some stem cells.
Tailor-made organs sound much less hard and messy than organ-legging.
Recently a man working on his radio-controlled airplane has a propeller cut off the tip his finger behind the nail and before the first knuckle. He sprinkled ground-up pig bladder and it grew back; nails, nerves and all. His name is Ken Spievak.

Now some poor guy taking a leak behind a bar late at night won't have to worry about the tip of his finger being cut off.