I'd be willing to bet the doctors who are concerned have all their body parts. Besides, cut off their dominant hand and see how fast they would stop calling a hand 'non-essential'.
I don't see anything about _why_ they feel it is more ethical to transplant a heart compared to a hand. Why its more ethical to bury a hand and let it rot than give it someone who needs one.
>So these people will tell you that it's OK to remain quadriplegic, because
>the alternative will challenge their ethical prejudices, even if the parts
>available, and you are ready to pay for the procedure? Somebody should
>start tearing their non-essential body parts off - maybe it'll help these
>people change their [non-essential] minds...