There are so many examples where electronic cigarettes would be appropriate -- and car rentals is certainly such a place. Ditto for airlines.
Instead of selling directly to anyone via the Internet, makers should have established a beachhead of users
through tactics like sales at airports and car rental desks. Get disposables in assisted living facilities. Sell firemen on the benefits of vapor over smoke. Nurses facing a long shift could take an e-cig break. Let that base swell .. and legions of smokers would follow the good examples.
Too late to start over now.