It is important to create fresh content for your website because the potential reward is far greater than the initial input. The main purpose of fresh content is to get a loyal visitor base who will return numerous times as they know you will providing them with something new. Secondly, search engines love fresh content, check out your web stats to see how many indexing bots visit your new content! There is also the psychological impact. No doubt, at one time or another, you’ve walked in to a house and instantly been impressed with how new and clean everything looks. From that point on, you’ve formulated the opinion that the homeowner is someone who takes pride in their home and probably has many other positive attributes. Apply that to your website – create the aura of fresh and new for your brand.
Expanding on the first reason of getting visitors to return, it not only increases your page views and potential revenue but there is the chance that the visitor will refer your site to a friend, and presto! another unique visitor. This is viral marketing in its simplest form.