There could be endless reasons why people may resort to selling on Amazon. Those factors themselves may require sellers to invest diverse amounts of time and effort. But if sellers wish to scale and grow at a rapid pace, and reap financial benefits, they must ensure putting in the required time, effort, and resources required for the same.
As sellers put in the time and effort, their growth and profit charts show the spike.
However, needless to say, investing additional time, money, effort, and resources may not always lead to a higher profit margin or rapid growth. Considering the goals and the direction is equally crucial. Gauging the direction can help you understand if sellers must opt for advertising verticals such as PPC services, or opt for a different marketing vertical.
This also means that often sellers that devote less time to their business may also see a considerable difference in their business.