Consumers have accepted the E-commerce business model less readily than its proponents originally expected. Even in product categories suitable for e-commerce, electronic shopping has developed only slowly. Several reasons might account for the slow uptake, including:

Concerns about security. Many people will not use credit cards over the Internet due to concerns about theft and credit card fraud.

Lack of instant gratification with most e-purchases. Much of a consumer's reward for purchasing a product lies in the instant gratification of using and displaying that product. This reward does not exist when one's purchase does not arrive for days or weeks.

The problem of access to web commerce, mainly for poor households and for developing countries. Low penetration rates of Internet access in some sectors greatly reduce the potential for e-commerce.

The social aspect of shopping. Some people enjoy talking to sales staff, to other shoppers, or to their cohorts: this social reward side of retail therapy does not exist to the same extent in online shopping.

Poorly designed, bug-infested e-Commerce web sites that frustrate online shoppers and drive them away.
Inconsistent return policies among e-trailers or difficulties in exchange/return.