Tony,
You are right on target here. I worry about playing the same old songs all the time but each time I change things up people complain. When I played with the big bands we did the same set night after night played the way the original bands played them and the people not only love it but paid big bucks to get into the places.
I doubt any single event or person is responsible for what is happening in the music business today. Four or five years back when people lost jobs and quit going to the clubs the club owners had to find a way to provide music at a lower cost. Seems that idea caught on and here we are today - Karaoki bars and DJ's.
All who make more pay then those of us playing the real thing.
Deane