[paulmd]

Cigarette companies devote significant resources to building the positive feedback loop to increase the addictiveness of their products (the experience of unwrapping the cellophane packaging is a classic example). Vapes are a much more straightforward delivery method that lack these enhancements.

Of course there's some parallels there for the software world, like the endless A/B testing social-media sites do to maximize the amount of time people spend glued to their product.