Why using e- marketing to increase sales and revenues and reduce expenses?

1 - e-marketing costs lower compared with an advertising in newspapers and magazines and TV stations so service owner can do many of the ads on his website using color images and all the details about the product - catalogs - in an interesting way and will not cost a thing, while that if the same ad on one of the daily newspapers would cost thousands of pounds.
2 - e-marketing and advertising on the Internet are continuously and ever lasting opposite to the traditional methods for example, advertising in the daily newspapers continue for just one day either advertising on the Internet that can last for several years.
3 - e-marketing and advertising on the Internet reach to customers directly for example , when a watch seller do an ad on the internet and after a period of time one customer came looking for a watch seller he will easily find the announcement.
4 - e- marketing keeps your customers where you can send an email to all customers about your new products.
5 - e-marketing and advertising on the Internet are customers service 24 hours that customers can view the products and get all the information about the product – and putting a full product catalog on the site - at any time through your site on the Internet.
6 - Follow up advertising campaign by knowing the number of visitors to your site - the number of ad viewers - and their neighborhood.
7 - Access to an infinite number of clients locally and globally who are the number of Internet users.