See John Stackhouse's article, "The Dirty Truth About Honoraria" here. I have wrestled with the issue of compensation and ministry and have made it a policy not to raise the honorarium issue when receiving an invitation. But I know that others approach it a bit differently. I am grateful that I have not experienced any of the "horror" stories recounted by Stackhouse and have generally been graciously compensated. That being said, this article does provide important insight into what often goes into a speaking/preaching engagement time and expense wise.