Span and simply Site Promotion.
No way a Cig-a-like will ever be anything like a Kayfun/Orchid type Vape and I wouldn't go back if they were a Nickle a piece.
Almost everyone I have converted already tried Disposables and went right back to smoking. Most after the first purchase died.
Ego Style vv batteries and BCC Clearomizers seem to work best as starters. While larger they are easy to adapt to and provide a much more satisfying Vape. Picked up 3 more Vapers in the last month just out of curiosity at work.