My man in the pub was at the very low end of what believers will do and pay for: the Richard Dawkins website offers followers the chance to join the ‘Reason Circle’, which, like Dante’s Hell, is arranged in concentric circles. For $85 a month, you get discounts on his merchandise, and the chance to meet ‘Richard Dawkins Foundation for Reason and Science personalities’. Obviously that’s not enough to meet the man himself. For that you pay $210 a month — or $5,000 a year — for the chance to attend an event where he will speak.

When you compare this to the going rate for other charismatic preachers, it does seem on the high side. The Pentecostal evangelist Morris Cerullo, for example, charges only $30 a month to become a member of ‘God’s Victorious Army’, which is bringing ‘healing and deliverance to the world’. And from Cerullo you get free DVDs, not just discounts.

But the $85 a month just touches the hem of rationality. After the neophyte passes through the successively more expensive ‘Darwin Circle’ and then the ‘Evolution Circle’, he attains the innermost circle, where for $100,000 a year or more he gets to have a private breakfast or lunch with Richard Dawkins, and a reserved table at an invitation-only circle event with ‘Richard’ as well as ‘all the benefits listed above’, so he still gets a discount on his Richard Dawkins T-shirt saying ‘Religion — together we can find a cure.’