"... emerging acts have developed a habit of touring the same nightclubs too often, depressing the demand for tickets to their shows."
I won't say this statement is flat out wrong, but it's slightly skewed. Whether or not one goes to the same clubs is a little irrelevant, I think it's how often they frequent those clubs. If Radiohead played the 40 Watt here in Athens four years ago and they come back again next week, do I really care that it's the 40 Watt they're performing at? No. I'm going to see them regardless because it's been 4 years since they came into town.