Here's a news flash for you:
People make money on the Internet. I know, unbelievable, right? The thing is that people often assume that the only companies that make money through eCommerce are the large companies with hundreds of employees and call centers in India. In truth, there are a lot of successful smaller operators in the eCommerce market; you could even make an argument that the Internet levels the playing field to a certain degree.
Benefits of eCommerce
Noobpreneur.com lists some of the benefits that eCommerce provides to any business, big or small. Some being, accessibility, not only to customers but also to suppliers and associates; advertising, the ability to reward loyal customers; communication and reducing cost while increasing overall effectiveness. The big guys all take advantage of these benefits, there's no reason a "Mom and Pop" store can't do the same.
The cornerstone of most of these benefits is efficiency. Owners can make sales and have information available to customers 24/7 without having to pay the staffing or ancillary costs of keeping your business open late. Also, you can advertise to worldwide markets or to very specific target demographics for a fraction of traditional marketing expenses. Even better, that marketing can give you feedback--it is generally easy to get data on how many people responded to a particular ad campaign, so you can fine-tune your efforts.