to what has already been said.
My brother-in-law and I discussed this topic at length Saturday at a family get together. If a body of believers is truly "gluttonous", it is a sign of immaturity. As has been noted, our primary purpose as believers is to meet together for worship and fellowship, but this is not where it ends.
If we look at the life of our Lord Jesus, He pulled away at times for worship and fellowship, but the main thrust of His life was in ministry to others, primarily in findng His lost sheep. We call ourselves "christians" and that word means "little Christ". If indeed we are "little Christs", then we will live as He lived.
I honestly believe the reason we are church gluttons is because we are not "looking unto Jesus". We do not have "the mind of Christ". Instead, we bury ourselves in the Scriptures (not a bad thing), we become ingrown, fearful that we might become contaminated by the world, instead of doing as our Lord did--worshipping and fellowshipping and then going out to find the lost sheep. If we have His heart, that is what we will want and do.