Ok, "free offer" or not, scam, or not, if you're thinking about ordering from a company that you're not familiar with, read all the fine print, reviews, and check the BBB online. Even if you're making a large purchase offline, its a good idea to do this.
Since people have mentioned direct e-cigs, I'd like to mention that this is not the same as e-cigsdirect. They actually have some of the products that people have mentioned that they use on here (such as Njoy). And, they have great customer service. I did have some problems...my cigs didn't charge the first week and I was sent a smaller bottle of e-nicotine than I was supposed to receive. Their solution was to send me both a new charger and a new battery so I was covered either way and to send me the correct size bottle of e-liquid and keep the other bottle no charge. I did end up switching to a mall kiosk one because I kept loosing the charger. The mall kiosk one cost 30 bucks and the charger is built into the case and came with 5 carts, which I haven't touched one and the others are still usable after a week. Refills are 10 bucks for 5 carts, which I think is about average??