imo, the need for religion is:
1. as a spiritual support for us, help destressed too =)
2. as a guidance in life.. althought the origin of religion are just myth

i personally don't belive in religion because
1. i believe in science
2. i believe in myself and sadly to say money - which can do anything

but one without religion like me, personally, suffer from insomia, so imo, everyone should have a religion.. practise the positives, not the negatives