The problem with making a game that takes sixty plus hours to complete with multiple endings is that for every "new" ending a player has to invest a further sixty hours at a time. Plus most endings you don't even KNOW what constitutes to them (FFX-2 had something like talking to a certain NPC in a certain mission at a certain time whilst standing on your head eating M&Ms or something). The only game I've come across that did multiple endings well was Chrono Trigger, with the expert use of New Game + and the simplicity of the ending being based on when you fought Lavos.