I think my disagreement with you, and with people in this thread, is that that you're all acting like you have a right to see a band in concert at a reasonable price more than the band has a right to make money (which, you know, is their livelihood).
The band does deserve to make money. But they also owe it to their fans, who are the ones that give them money, to be fair and reasonable. Yeah, I know they CAN charge whatever price because of supply and demand. I've taken multiple economics lessons. But that doesn't mean they have to.