Many businesses are completely unaware of how effective their marketing activities are in generating new leads and sales. Many just blindly adding more money to Paid Advertising, Online Directories, Industry Journal Advertising and Social Media without really knowing how cost effective they are as a revenue channel.
Consider the situation where, as a business owner, you have been persuaded to sign up for the next edition of your "must have" online journal which includes "free" advertising. All it requires is a hefty monthly cheque and you a "guaranteed" a stream of new eager visitors to your website. The journal has a high subscription membership and your company features highly - but how many new leads or sales is it generating?
Without Website Analytics you will never know. You will always be reliant on whatever the Journals sales people tell you, so you keep paying out.