My biggest peeve when I visited Memphis. My wife went to Graceland, which I was excited to avoid. A couple buddies and I went to Sun Records for a tour.
So many black rock pioneers recorded there and they got about 10 minutes of lip service. The whole rest of the hour was dedicated to Elvis. I left a bit early when I realized they were sticking with Elvis the whole time.
Now, the Lorraine Motel - that is a tour I feel like everyone should experience.