Quoted from Ericpinballfan:
A few posts mentioned " selfishness ". I get the use of the word, however as others pointed out above...When somone has reached that dark point, with no need to go on, the last thing there thinking is how others will perceive them. The pain inside is so deep and hopeless, the easy way out seems best. They either dont want to be burdon, or feel no one cares about them.
I get your greater point though I hear people calling suicide an easy way out - maybe it is for some, but I can find few things requiring more bravery or harder than taking your own life. I don't think many people make that decision lightly.