I'm sorry that you had to go through that with your loved ones, OBG
Quality of life means everything to me...
Just be careful. One day you make an offhand comment to your wife after seeing someone in a wheelchair "I wouldn't want to live that way." Next thing you know, they're telling her "Well, Mrs. Baldguy, if he recovers at all he'll be confined to a wheelchair, but if we just give him a little extra morphine..." A lot of people are in wheelchairs and very happy to be alive at all. I bet a lot of them once said "I'd never want to live that way."
I told my wife I don't ever want her to have to make that kind of decision. I instructed her to tell them to transplant my brain into a jar of nutrient solution if necessary.