I have experienced this first hand. I have attempted suicide twice in my life and have gotten help for it. Because of my experience, I think I have come out of it with a different view which is this:
Suicide is somebody's choice and theirs only to make. Does it affect others? Yes, of course. But I still believe that it is up to the individual to make that choice. I remember thinking after my attempts and hearing how it is a "selfish way out" that the my family too, was being selfish, for I was suffering and medication and therapy just wasn't doing anything yet they selfishly wanted me in their lives just as I wanted to end my life and stop all of the pain.
A few other things that I just want to throw out there because I'm experience an odd flood of emotion. The assumption that suicide is bad is solely based on the notion that life is better than what lies beyond, which is something we just don't know. Also, people call suicide the cowards way out or giving up. I just don't see that. To me, it is just not delaying the inevitable. We all die. It is a fact.