I think people are hugely overreacting to the BMAH Brawler's Guild invite system. In a few weeks or a few months, supply will exceed demand and invitations will cost, at most, whatever the BMAH minimum bid is (I've heard 1000g, but I'm not sure). People are speculating about AH mavens buying all of the invitations and throwing them away, or reselling their one invite for more than they paid for it; these people clearly don't understand either basic economics, how the BMAH works, or both.
That said, I think Blizzard will probably change how they're distributing invitations, not least because it goes against the nature of Fight Club (which had an anti-capitalist message) to be exclusive through money. It might have been more acceptable if they hadn't given it any Fight Club trappings and just made it its own brand of underground fighting club.