Addicted to Religion?

This morning I finished reading the book When God Becomes A Drug by Leo Booth. I've written two reviews online about this book already, but it was an excellent book about an addiction that isn't very thought about. Booth doesn't mean the average religious experience in any religion, but looks at it the extremes, such as donating so much money it would send a family into bankruptcy, preaching against things you secretly indulge in, etc. He notes that addiction to religion can happen in any religion, not just ones that would most likely come to mind.