I met Kenny Price of Hee Haw fame in Rockaway Beach 20 or so years ago and he was pretty excited about the go karts and the "strip" that was there, as was I. He was buying tickets and I got to see Lulu Roman driving a go kart which was pretty funny as her kart was moving quite a bit slower than the others. Not only was Kenny excited, but he was very friendly. I also met Tom Jones in line for Fire in the Hole during a visit in 1994, and he too mentioned that he didn't realize how much they had "here" (meaning SDC, I took it). I didn't realize it was Tom Jones (I didn't even know who Tom Jones was), but my wife at the time identified him. He was also very friendly. Looking back, I just can't be sure it was even Tom Jones. Not that I can't belive my then wife, but I would think Tom Jones would have a hard time visiting SDC on a crowded day as just an ordinary visitor. It was probably just an impersonator. It was definitely Kenny Price and Lulu Roman in Rockaway though. Not exactly Frank Sinatra but there ya go.
Here's a skit from the sketch comedy show, "Mr. Show" that starred David Cross and Bob Odenkirk that appeared on HBO back in the late 90's. They seem to suggest Branson is at least a nice regional destination for seniors to visit.
http://www.youtube.com/watch?v=-ES7ChMpqiM