"This band can't possibly be popular enough to sell tickets cause I don't understand them. Blah blah pop punk blah blah." ~ typical AP person
Lol. We can't understand them. I think we can fully understand the situation and we are all quite aware of the band. Where was Phoenix playing after Wolfgang dropped (which was a 100 times bigger record and Phoenix was relatively big even before that record)? Theatres. Where were Passion Pit and Two Door Cinema Club playing? Theatres. So look at the similar breakout artists from this genre who were very similar to Foster The People and compare where they were playing.
They are not big enough for these venues. Sorry. We'll see how well some of these dates sell.