By identifying your industry, Initial Setup can determine which default drawing template might be the one that best fits your needs. Along with defining the default drawing template, the industry you choose is also used to:

• Identify partner products. Partner products are developed by third-party developers; they extend the base functionality of your product and add specific functionality that is related to your industry. For more information about partner products, see http://partnerproducts.autodesk.com/.
• Control Autodesk Seek results. Autodesk Seek is a content search site that contains symbols, specifications, and other design-related content that might be placed into a drawing or bid package. The specified industry filters the information that is found based on the content that is best related to you. For more information about Autodesk Seek, see http://seek.autodesk.com/.