You can demonstrate a low cost for your product or service by breaking down the price to its lowest time increment. As time passes some will forget why your product or service is so important. They'll be distracted by other priorities and forget all about you. You'll lose the business. For example, offer a special discount price or a special bonus for ordering before a deadline.
Most people fear losing something they have more than they desire gaining something they want.
This fear causes many people to avoid buying something they really want. Eliminate the risk with an unconditional money back guarantee. Provide reassurance with testimonials from satisfied customers. Increase your credibility by allowing customers to communicate directly with you. For example, give them your direct phone number.