How can you have a concert and have literally only...

How can you have a concert and have literally only have one bar/food line per floor? You are missing half the concert trying to buy a single drink! I m trying to have a fun experience with my little sister and little brother for the Backstreet Boys concert. We came early and this line is beyond ridiculous. I m talking to people in line and they all are saying the same thing. I go to concerts worth my friends all the time. And this is so disappointing. I honestly won t come back here or recommend my friends to come here for any event.