Pic from http://www.michaelandersongallery.com I don’t own the rights to this photo, nor am I making any money on it.
There are Christians who love to hear sermon after sermon after sermon. Is this Christian entertainment? Do they ever have the chance to put into practice what they hear?
The purpose is the sermon is to affect actions; church is about change. There are things we should DO and things we should NOT DO. Christians must ACT in this world. Faith without works is dead. — James 2:20. If never translated into action, what good is it? It’s like the super obese. Food is good, but it’s purpose is to give us energy to DO. Too much food is unhealthy.
Mustard Seed Budget 
As a pastor, preaching regularly, I can’t say AMEN loud enough!