Quixtar says they are a multi level marketing company and not a pyramid scheme, which is like saying "call girl" instead of "whore." If you think that's harsh, here's a legal expert comparing them to the mafia.
But at least the mafia makes money. The average monthly income from an active Quixtar "business owner" is only $115 a month. We don't need a beautiful mind to know that $115 a month is a whole lot less than $250,000 a year. If you only worked 10 hours a week on your business you are looking at a return of about $3 an hour, or less than half the Federal minimum wage. But that's OK, because you won't need money after you've driven away all of the friends who used to go out with you by pestering them with sales pitches.
UPDATE: Read the comments section for the article. There are priceless comments.