1- because they said they would play entire albums and they would play many songs the never played before, one night would be more acoustic, other one more electrical...

They created such a big spectations they couldn´t feed

http://www.musicradar.com/news/guita...on-tour-236166

"We're doing like 15 nights at the O2 in London. We're going to be a lot of different stuff," he said. "I think, you know, there'll even be stuff like we might do Slippery When Wet in its entirety or Lost Highway in its entirety - stuff like that."

About the circle: "We're really, really proud of this record and proud of the evolution that happened with [it] for us as far as musically and songwriting and all that stuff."

2- The high prices

3- The autopilot set list in most of the 12 nights there, where many people went more than twice ( I went 5, and I think they had the unique oportunity of playing what they want, with much more variety

...

Yeah, there were magic punctual moments (Something to believe in, Hard letting you go, Wild is the wind and Let it rock) but you know, 12 nights at the same place... everybody expected much much much more