Hey,

Interesting article:



It's six pages long, you'll have to head over there:

http://www.villagevoice.com/2010-07-06/music/hippie-crack-nitrous-mafia-boston/1

Snippet:

Throughout the year, the Nitrous Mafia travels from state to state, selling balloons at concert sites. The scene in Williamsburg is only a small preview of what happens in summer, when the outdoor festival season kicks into gear. During these campground events, which last two to four days, the Mafia, which is divided into two rings, based in Boston and Philadelphia, can burn through hundreds of nitrous tanks. With the ability to fill up to 350 balloons per tank, which they sell for $5 and $10, they can bank more than $300,000 per festival, minus expenses. Year after year, security guards at these events attempt to crack down on the illicit business, but, in most cases, they're outmatched by a phalanx of menacing gas dealers who have little regard for unarmed concert personnel.