The push is to get new people to the district convention? Seriously what person is going to want their first dose of a new religion to be an entire day listening to talks? Maybe if you invited them for the drama or something, but really a district convention? Maybe they don't actually want new converts.
On a side note, what happened with the dramas anyway, there's never any ones with costumes anymore. Last couple years they were all modern day examples instead of the bible dramas. What a jip.