It doesn't matter to me if the ending is happy or sad, as long as the story is told. So many times, I invest my time into a game, only to realise I'm gonna have to wait 2+ years for the conclusion! Studios close. Projects flop, or get cancelled. I know there are more important things in life, but I don't want to invest in a game like Soul Reaver, or Halo 2 knowing I may be dead before the story gets finished. The time between chapters of a video game story are too long.