I'll be honest, I didn't lose interest, none of the shows listed above ever captured my interest.
Now, when I worked at a CBS station we used to talk the next day on air about who got voted off, so I would pay some attention to that show.
The crew was unanimous in wanting JEFF PROBST voted off.
We never understood HOW that show got on the air, and it premiered almost 19 years ago and is STILL ON.