Each mega church on average brings in $ 6.5 million each year . Mega churches are most popular with evangelical Christians . Comment: Joel Osteen is one of the world 's most famous evangelical pastors .
Each mega church on average brings in $ 6.5 million each year . Mega churches are most popular with evangelical Christians . These churches can hold up to 15,000 people in one service . Joel Osteen is one of the world 's most famous evangelical pastors .