When the congregation leaves the theme is imprinted upon their conscious and sub-conscious minds. To get the full impact of this concept one has to have experienced a service that is not thematic. The subjects and tunes they play are an end within themselves. Granted the presentations may be quality all the way. When they are finished the congregation is elated.
Announcements are a necessary nuiscence .
However, they contribute little to the worship of God. Yet, they are helpful to the on going program of the church. Many times different individuals are used to weight the impact of an announcement. People go away remembering the announcements. But what does this contribute to our being brought into the presence of God.