Also he kept talking about devotion to ghosts and invisible superstitions. Well the same thing could be said about any metaphysical idea like mathematics. A society that didn't need math would see math as a superstition. Even if the wisdom or practicality of math was demonstrated the skeptic can always find reasons why it doesn't apply.
Dawkins found a very easy target in the ancient Hebrew religion that Christianity expanded. I found it very irritating that he used as an example of religion the most archaic and objectionable religion he could find, which reminded me of John Shelby Spong's brilliant first question for atheists: "What God is it that you don't believe in?" Any intelligent Christian would share most of Dawkins' objections. This is not an argument against religion but against archaic social codes.
The entire argument ignores the fact that we are not machines– that we respond to life and its richness with emotional qualities which are always unreasonable. I'm sure Mr. Dawkins has a wife to whom he is devoted in a unique way. Certainly he can understand that his devotion to that particular woman is inexplicable to someone else. There is no way he can prove the quality or depth of his love to another although to himself it clearly exists and clearly expands his life to a great degree. And yet there is no way he could convince anyone else that his love is real. We could create a firm argument that his love is simply a worthless superstition.
Dawkins logical conclusion is the penultimate solipsist's argument. It becomes clear before long that any other value system than his own is inadequate. His argument that monks are wasting their lives pretending to make the world a better place can be extended to any other profession or indeed person. Dawkins quickly paints himself into a corner in which only his own life is worthy since he alone follows "true values". Though he is unaware, this is what constitutes Dawkins' own religion. The truth is not that there is no God but that Dawkins' God is so tiny it's no bigger than himself. I find it hard to criticize him if he insists he has a happy life but I would never be happy with such a pathetically tiny God!