Paul Chappell makes a good case for evening services. I would encourage Lancaster Baptist, and all other churches with evening services, to continue them, as long as there are people who want to attend, and it's working for them. If their people like small groups, they can always add them to the schedule, on a voluntary attendance basis. instead of using them as an excuse to cancel the evening services. I can't help mischieviously wondering, though - if "Three to Thrive" is good, then why not "Five to Thrive?" It even makes a better rhyme.
If there are churches that are thriving on just one service a week, then that's okay, too.
I have to wonder - as gasoline prices go up (although they are down temporarily) how will this affect congregations where most of the people are driving in 3 or 4 times a week (including visitation night) from long distances, because that church is the self-proclaimed "only good church around?" There are many small IFB churches that are in that position - they attract few people from their own communities - they are composed mainly of people who drive in from 20 or 30 miles away in search of doctrinal purity. If they can maintain their attendance in the face of higher gas prices, then more power to them, but at some point, people may start to look for a reasonably good church that is closer to home.