seconding your anecdote. I use an ecig myself, and I live next to a college campus -- I'd probably say I see about five people a day using them. I have never seen someone using one of the cig-like disposable types.
> I use an ecig myself, and I live next to a college campus
And college campuses (and the areas around them) are totally a representative cross-section of the general; population on all things, including mechanisms of tobacco consumption, right?
> Do you have reason to think they wouldn't be representative?
The fact that they are demonstrably not representative of the general population by age, income, education, or, really, just about any other variable that has been studied makes it very unlikely that they'd be, except coincidentally, representative as far as purchasing patterns for any particular good for which a variety of options exists (unless its a good purchases nearly exclusively by college students, but that's clearly not the case here.)