Because if preaching Christ and Him crucified is not enough to get them in the door, simply offer a $10 gift certificate to Chick-Fil-A to all first time adult visitors. That should bring them in the droves. Do we wonder why the world mocks us in the evangelical world? There is no difference between this and offering a Christmas tree or promising to swallow a goldfish or fill-in-the-blank.
Gimmicks, toys, and emotionalism is the name of the game in many churches just trying to capture one more person to put in the pews. Could you imagine the early New Testament Church offering a gift certificate to the unbelievers in Rome or Jerusalem or Antioch?