The purpose of any website is to get people from your target audience interested in what you’re offering. Whether it be a product or service, 9 times out of 10, someone is going to want to communicate with you further. Because of this, in almost any industry, you’re going to want to create a contact page.
For some, this is that last page on the site map where you just throw a bunch of information. You can leave it up to the person to decide how they want to contact you and what they want to contact you about. For others, this is the last attempt to get your potential customer to give you their business.