Of course, non-mainline evangelical churches that think just changing music styles or rearranging the furniture will solve their attendance problems are just as deceived. I'm not against any of the changes-we should utilize every means possible to help communicate God's truth. For me, incorporating contemporary elements into our church services has a missiological purpose. If we went to a foreign land, it would be extremely arrogant to insist that the people adopt American culture, dress and language as conditions of their being able to hear the Gospel message. Yet for many churches they do just that, they insist that unchurched visitors dress like them, sing songs written for their grandparent's generation and sit facing forward in rows of pews; talk about cultural arrogance. But taking a bit of liberty with Paul's words in 1 Corinthians 13: "If I play contemporary worship music, and use a video projector to display words but don't have love, I'd be making meaningless noise like a car alarm going off all night." The "stuff" is not the point -it's a means, not an end.
For a humorous, albeit all-too true view of the megas view this youtube clip.