Hardest hit were the companies in the roll-your-own industry. The tax
on their tobacco went from $1.10 a pound to $24.78 a pound. Companies
in this niche market saw their revenue nosedive.
Many responded by turning to what the Associated Press is calling a
"marketing twist" -- instead of paying the enormous increase, they are
simply marketing their primary product as pipe tobacco, which is taxed
at $2.83 a pound.
Naturally, this new pipe tobacco came on the market under the same
brand names as the old roll-your-own tobacco. And of course, it was
subtly advertised as suitable for both pipes and roll-your-own
cigarettes. This marketing twist is legal because there are no
government rules on how pipe tobacco must be formulated.
http://www.lasvegassun.com/news/2009/nov/21/pipe-dream-posing-problems/