Chapter ??: Why almost all the Akatsuki members are obsessed with immortality
First, we have Tobi, who is actually Uchiha Madara. He's supposedly immortal.
Next is Pein. The manga doesn't say if he is immortal but for argument's sake, having six bodies makes him obsessed with immortality, too.
Hidan isn't dead. His head is just buried somewhere in the Nara forest reserve.
His partner, Kakuzu, implanted five hearts on himself so he could become immortal.
Sasori turned himself into a puppet. That makes him a contender for the immortality game.
His former partner, Orochimaru, was obsessed with getting Sasuke's body. We all know the Snake sannin's reason.
Itachi wants to get Sasuke's eyes in order to obtain everlasting Mangekyou Sharingan, just like Madara, who is supposedly immortal.
So it seems that those who didn't join the race are Konan, Deidara, Kisame and Zetsu.
Now why are the rest of the Akatsuki so bent on living forever?
You'll be surprised to find out that it's not because of their dream of world domination,
The answer is quite simple that it might shock you.
They're scared ofgoing to hell
LOL.
Once upon a time, these powerful and scary Akatsuki members used to be weak and unskilled people. However, they already had twisted, loony minds. Some people in their respective families and villages harmed them or simply pissed them off, yet they were unable to kill those said people at the time due to their lack of awesome ninja skills. Instead of waiting for the day they would become stronger and defeat those people like any sane villain would, they contacted the person who would instantly bring the person tormenting them into hell. That's right, they contacted Enma Ai. Her warning, "When one is cursed, two graves are dug," entered one ear and exited the other.
Like the kids who failed the classic marshmallow test, these Akatsuki members had no qualms about pulling the red string from the straw doll Ai offered them. It was only years later, when they discovered they could be amazing ninjas that they regretted their decision. It was only then that the full meaning of the words, "When your body dies, your soul will be taken into hell as well," sunk into their thick skulls.
It was not like they wouldn't go to hell anyway, after all the atrocities they had done to their families and villages. Still, maybe they had this hope of redemption but the thought that they would be cursed to go straight to hell even if they repented drove them crazy. Crazy enough to crave immortality, which was the only way they could avoid death, and therefore, hell.
LOL.
Crazy.
A/N: I seriously don't know how I thought of this. Arrgh!