Many people make their purchases based on their emotions. If you feel very strongly about something, the chances are that you'll make a purchase, right? That is why niches based on hobbies, desperate situations, and passions are so easy to make money in.
Step into your subscribers' shoes to see what their emotions are, and how you can showcase your product so they feel that it will take care of their needs or fulfill their desires (Needs & Wants, again!)
Hitting those emotional hot buttons is often what makes people purchase. If you can incorporate some honest and real emotions into your emails, you'll stand apart from the competition.