[quote=@Penny]
Nonsense. If you sufficiently raised the standard of living we could all unite behind hedonistic excess! People go for religion because their lives suck and/or they were brainwashed as children. It can eventually be overcome.
[/quote]

Hedonistic excess only goes so far, no matter how much someone has or how good their life is, people will always start to question life, themselves, etc.  There is a reason why so many rich and famous people get suckered into weird cults, or suddenly gain religion, because religion helps them fill a certain emptiness and void within themselves that they were unable to fill with all their possessions.  No matter how good life gets religion will never disappear for a few reasons.

Things will never buy you happiness and many people are unable to effectively find what can fill their hearts but sometimes religion can help them with that.  No matter how much one has often times they will find themselves dissatisfied with life and have a want for something beyond what they can see.

The questions of life will often make someone question their existence and go on a spiritual journey.  Why am I here?  Is there any point to my life?  Is this life really all there is?  How did life begin anyway?  Many people when they seriously ask those questions will find those answers through some kind of spiritual reflection.

D.E.A.T.H.  Death is always on the horizon and many people find religion when they come face to face with death, be it the fear of dying or just the want for something more.  As far as we know the only way to beat Death is through a supernatural power which religion often provides, be it a way for eternal life after this one, or a method of breaking the cycle of death.

It is an impossibility for Religion to ever die out.