If you’ve been in this business, you've probably learned that those who do not learn from history are doomed to repeat it. We live in an economy where it's normal to see cycles. While customers come and go the numbers decreases every month. Not losing sight of some of the customers through a business mailing list will help prevent you from having to repeat and call the same people.
A lot of what we do in our businesses today is little different to what the owner of a little store does on a daily basis to grow a business. Keep the customer and give them what they want, and you'll always be ensured of the number of customers for your growing business. The power of the list need not be underestimated, with a list you have the ability to contact hundreds or even thousands of people instantly of building one.
In order to keep the number of customers you need to set up the list of the people who is most likely to spend their money on what you have to offer. A popular saying in marketing goes like this "the money is in the list." It's nice to make a sale but your goal shouldn't be to make just one sale , it should be to make a lot of sales. With a mailing list, you have the ability to do just that. Find a company who's willing to give you the list and will let you achieve business goals.