The economy has forged into developing new user scenarios fueled by basic human insights. Firstly, people do not like (and often are not capable of) paying for high-value goods or services in one installment. Secondly, having already made a purchase, many are worried that something wrong might happen. Thirdly, most people want someone else to take responsibility for solving the problem if the purchased item breaks down, gets lost, or is stolen, but no one likes to pay for insurance.