U2 Vertigo Concert Tour scalper & ticket broker scam

I'm disgusted by the amount of U2 Vertigo Tour Concert tickets that are available online by scalpers & ticket brokers. The San Jose, California shows sold out in less than one day. I would think with the humanitarian work that Bono has done around the world that he would be appalled with this. I saw them the last time they came to San Jose and wanted to take my two young sons who are aspiring musicians but as a single mother am not willing to pay grossly inflated prices. The band and law enforcement agencies should be outraged! Shame on them all for not putting a halt to such an injustice!