Unsaved people don't have the ability to serve Christ.
Newly saved people tend to have needs and the Church is there to tend to those needs and help feed them milk until they can handle strong meat.
Ok, so the mega church isn't for you...big deal.
Preach, teach, disciple. All different, all required.
If that is what the mega churches do fine. What I have seen of them they are more about the pastor than the savior. The pastor at the mega church in Houston is a classic example.
He writes pop psychology books and get rich junk. You are not helping new Christians or bringing in the unsaved by saying that Christ is simply another way to get along in the world. "I have overcome the world".
Again, just my observation. If there are mega churches who are preaching the Word and making Christ the center of all things then praise God for them. I just haven't seen it.
Christian Worship was not intended for non-Christians. Any attempt to include them must include watering down the message.
Nice post.