Some good thoughts from RJS at Jesus Creed:
Perhaps part of the problem is that we all, Christians and non-Christians, laity, clergy, and leadership tend to view church in... spectator mode.
Perhaps a better analogy would be to equate Christians with the team, not with the spectators. This turns some of the reasons in the list on their head-- but strengthens the foolishness of others.
Spectators watch, the team participates.
Spectators often leave unchanged, the team practices to learn
Spectators are individuals, the team … well it is a team.
She details are filled in here.