The inability of worship leaders to get the congregation excited can sometimes be more of a reflection on the spiritual lives of the congregation than the ability of the worship leaders. If we are not careful, our infatuation with consumerism dictates our focus in worship. Consumerism works from a position of providing satisfactory services. In worship, the customer is not always right. Consumers expect to be served on demand.
Christians expect to serve on demand of the needs of others.
When corporate worship is driven by the expectations generated by consumerism, we have a problem. If it is, we have fallen into subtle idolatry. At its heart, idolatry is putting self before God. The quest for personal gratification becomes the driving force in life. If my measure of worship becomes what I get out of it rather than what I bring to God, then I have taken God's place as the recipient or worship.