When working for others, your level of income is steady. This brings predictability to you everyday life, but on the other hand, you never experience rapid increase in your income.
Nowadays, a paid employment does not mean the same kind of security as it used to. Companies are moving their operation to other countries, and a huge amount of people are made to look for a new job overnight.
Of course, we cannot promise millions of dollars to anyone. Thinking about money alone, is not a good way to start anything. However, by launching an online store with a model that supports fast growth, you have an opportunity to reap the benefit of the income, produced by your hard work.