After reading through all the post I think one thing is obvious. Whatever Branson entertainers are selling these days people are just not buying. There is really not a simple solution to the problem as most modern era entertainers probably do not want to set up shop in a permanent location. So, you are left with the has Beens or never wases. I would not be surprised to see a total revamp in the coming years for entertainment options if Branson wants to survive as a entertainment destination.
There was a time when there wasn't much to do in the Branson area, other than shows, SDC, and fishing. The options for entertainment have exploded - water parks, mini golf, go-karts, golf, museums, shopping, zip lines, Duck rides, wineries, family inclusive resorts such as Big Cedar, etc. Even lake activities have increased. Rent a jet ski, ski boat, pontoon, canoe, parasail, or ride the Branson Belle and/or a catamaran. Personally, I haven't ever been interested in Branson shows, although I have gone to a few of them. By the time a family purchases a family pass or two for a show that lasts 2 1/2 hrs., they could spend a day on a rented boat. The problem with Branson shows is that vacation dollars are now spent on other forms of entertainment.
Personally, I come to Branson for the lake activities and SDC. I've never been interested in shows. I will spend my money on concerts at home, but I'm not interested in doing that as a vacation activity. If big name entertainment came to Branson on a rotating basis, I still wouldn't go.