I think it's amusing that the two people in this thread loudly trumpeting brainwallets are someone who says they have a fetish for cracking passwords and someone who has posted extensively about wallet cracking and tried to sell scam wallet cracking tools.
This fits right in with the fact that person who popularized the idea and created brainwallet.org was cracking these kinds of keys and complaining about how few he was finding online before creating the site.
Food for thought.