I wrote a rather enthused reply to the post above me, but it got swallowed up by the God of Internet, when I tried to hit the post button.
Anyway, sorry about Tokyo, it's a city in Japan; my mistake. And I was just trying to make the leap of logic that faith and belief are two different things. With regards to sonikjuice's post, wealth is a significant factor in the level of contentment in an indiviual's life. Present times have more wealth, therefore, less of a need to pursue the historical reason for religion, which was a reaction to the discontentment and disparity evident then. There is also no need for a tribalistic unburdening of grievances, as culture and society has expanded to a much more advanced, enlightened state so as to not require vents that are as intricate and finely-weaved as religion.
You might argue that religion has a traditional basis, values passed on from generation to generation; if so, it is anomalous, having survived at least since Sumerian society, its longevity comparable to the wheel or writing. As with regards to developed brains being mostly aesthetic, compare Albert Einstein, who held a firm belief in God. I don't deny the validity of your view that if God existed only because he is believed in, then God is invalid; in fact a God like that would only be a God Of Convenience. The God Of The Easy Way Out. Which, tempting as it may be, is an impossibility.