My dad was an identical twin, and his brother has two daughters, so if, God forbid, any of us ever need a kidney, or a liver, we may have a ready match in a cousin, since, genetically, we are half sisters. That's been a blessing and is a comforting thought.
I do have some issues with people getting livers who need a transplant because they destroyed their livers through their own lifestyle choices. Not that they shouldn't be able to be listed, but I just think they should be a lower priority than a child or someone who has a liver disorder caused by genetics, or just bad luck. Maybe that makes me a bad person, but I just don't like the thought of someone with a genetic disease being passed over for a liver because someone who was a chronic drinker is sicker.