The issue is whether we have detailed information about all users from all levels and all age groups. Unfortunately, that isn't the case. The tools available to us, such as surveys, are limited. Maybe you've received a phone call while you were making dinner. Someone wanted to ask you 10,000 questions and you had ten minutes to respond. As a general rule, we have anywhere from 10 to 15 minutes to ask our questions. The basic questions that make up our surveys have not changed since 1998. We rotate our selection of questions, but we are limited as to how many we can ask. For example, the question about little cigar consumption has only been part of our survey since 2007. We stand by the quality of our data, but clearly we cannot cover all types of usage by all age groups.
On June 11th, 2009. See this statement in context.