When you kick the bucket mate they'll be no good to you anymore.
Maybe, but organ transplant seems too cannibalistic to me. Besides the process after death is strange. "Hi we know your loved one just died a few minutes ago and you are struggling with it, but we want to hack him/her apart for parts, is that okay with you?"
BTW I misread Grant's post, I chose "let family member decide" on the form, not "donor". But that doesn't matter anyway, the decision always is family member's.