There are thousands of independent software authors, open-source & companies with great products. These small companies or Independent Software Professionals (ISP) often do not have the resources and capital (and sometimes desire) required to properly market their products. They attempt to distribute the product as Shareware by listing it on a download site. They put an arbitrary price on their product in hopes that customers will see it and purchase the product to pay for the authors' development expenses. In general, there are many similar programs and without proper marketing and sales, great products can go unnoticed and the developer does not maximize the value of what they have created.