If you plan to sell products via an online store website, you need an ecommerce enabled website.
Price is undoubtedly the main benefit of ecommerce. The online sellers avoid cost like labour or store rental charges to really drop down their prices.
Communication plays a key role in trading and for ecommerce the buyer and seller can communicate really fast.
It is just amazing to be able to receive your products delivered at home rather than the cost of time and transport and parking of going to a store.
With ecommerce, you don't have to limit yourself to the products of your region or country, you can literally have any brand from different parts of the world.
Comparison and reviews
You can now get a good sense of a product you haven't even bought or tested.