Why? Because as a matter of fact i most towns the Black Church is as much or more a social entity as a benevolent or a worshipping one. In many places, the only real and acceptable social outlet is the church. People get their self worth, their sense of accomplishment, their opportunity to lead, their association with friends(sometimes who wouldn't be friends otherwise), all that from the church. You may be a maid at the Peabody, but in church, you are the chairman of the district ushers, and the go to person for ushers in your church.(for example)
The more programs, the more opportunities for all those things. The more programs, the more offerings. The more programs(relative to the first)the more program chairpersons and the more bows to take. The more programs the more out front your church is. The more programs, the more fellow shipping and hobnobbing with friends
If it makes people happy, Why not. In all of the things that people do in church, God and worship should be first. Sometimes it is not, but it should be. Next should be the love of people. If those things can be in the proper hierarchy of things, certainly, why not?