Why Online Shopping?

Convenience
Online stores are usually available 24 hours a day, and many consumers have Internet access both at work and at home. A visit to a conventional retail store requires both travel and time .

In the event of a problem with the item—if it is not what the consumer ordered, or if it is not what they expected consumers can return an item for the correct one or for a refund. However, Consumers may need to contact the retailer, visit the post office and pay return shipping, and then wait for a replacement or refund. Some online companies have more generous return policies to compensate for the traditional advantage of physical stores. For example, the online shoe retailer Zappos.com includes labels for free return shipping, and does not charge a restocking fee, even for returns which are not the result of merchant error.

Information and reviews
Online stores must describe products for sale with text, photos, and multimedia files, whereas in a physical retail store, the actual product and the manufacturer's packaging will be available for direct inspection.
Some online stores provide or link to supplemental product information, such as instructions, safety procedures, demonstrations, or manufacturer specifications. Some provide background information, advice, or how-to guides designed to help consumers decide which product to buy.
Some stores even allow customers to comment or rate their items. There are also dedicated review sites that host user reviews for different products. Reviews and now blogs gives customers the option of shopping cheaper purchases from all over the world without having to depend on local retailers.
In a conventional retail store, clerks are generally available to answer questions who are often not very well aware of the products. Some online stores have real-time chat features, but most rely on e-mail or phone calls to handle customer questions.

Price and selection
One advantage of shopping online is being able to quickly seek out deals for items or services.
Shipping costs (if applicable) reduce the price advantage of online merchandise, though depending on the jurisdiction, a lack of sales tax may compensate for this.
Shipping a small number of items, especially from another country, is much more expensive than making the larger shipments bricks-and-mortar retailers order. Some retailers (especially those selling small, high-value items like electronics) offer free shipping on sufficiently large orders.
Another major advantage for retailers is the ability to rapidly switch suppliers and vendors without disrupting users' shopping experience..