Situational question
Being in a vegetative state or in a comatose state entails a lot of financial, physical and emotional sacrifices for the families of the patient.
Given the fact that someone close to you or you yourself is in a comatose state, will you allow for the "pulling of the plug" or will you fight for your life?
If you have the financial freedom to support the treatment of a comatose person then I don't see why not?
and on another note, if you lack money for the treatment, I think the patient himself/herself knows this if he/she was alive.
But still, if you love a person enough you'll try hard.
Trying hard doesn't guarantee you'll get what you want though,
It's a matter of how much you are willing to sacrifice for the person you love.