According to Billboard : "Dating back to November of 2009, Lada Gaga's 200 reported Monster shows grossed $227.4 million and drew 2.5 million people, according to numbers reported to Billboard Boxscore. Depending on how several other tours shake out this year, Monster Ball is flirting with becoming one of the top 10 highest-grossing tours of all time." the 227 million came from Monster Ball only.
I don't understand why you are saying they are combining 2 tours.
That tends to be how tours, and most products for that matter, work. The question is, are people willing to pay for more
Seeing as the Tour was only originally suppose to be a one leg North American Tour, but due to heavy interest, the tour expanded into a World Tour; where even a second N.A. leg was made.
She was suppose to go to South America, but negotiations between her team and promoters fell through.