Sleazy and overpriced introductions to e-cigs are just about everybody's story on this forum. It happened to me too. But, we got introduced. And we liked it. Most early vapers out of pure curiosity usually end up on this forum as a matter of course. Only the incurious, semi-interested, or lazy give up out of frustration with their first quirky product.
So, all in all, I think getting the word out about e-cigs is more important than the few fallouts from people not connecting with poor product. So Costco and Walmart selling them ain't a bad thing.