Just a small report.
A friend of mine, who is a casual, just came from Prague concert and said: "hands down top 3 concerts of my entire life".
This guy is a metal freak - goes to every fucking metal concert you can imagine. He likes Maiden, but can be considered as a casual - he is more into thrash and black metal.
Anyway, he was really impressed. According to him, the highlight was ROTAM. His friends, who are even more casual fans than he is, were also incredibly impressed. They all had an amazing night.