I can go further and theorize that the monster we see in the end is not Yu Yevon.I think I know were he is.He is desguised.

Being on the war don´t make people know Yu´s plans.They were on the war but thought the machines were real.One can not tell just by looking at them(they imitate the machines).

I think I am gonna by FFX-2 online because I am sick of looking for it in shops for nothing.Not even those shops with used games have ffx-2(Game,Replay Zone,etc...).Sick.