If you are a commercial venture, you are not reaching the millions of disabled users who may wish to purchase your goods. If you are a local, regional, state or Federal government agency, you may not be providing information and service to all your intended target audiences. If you are an educational institution, you may not be reaching that portion of the public that are disabled , and are actively seeking educational opportunities. If they cannot see what your school has to offer, they will simply go elsewhere. Some states in the US, Maryland for example, have already enacted legislation and established policy guidelines to require all new state contracts to meet specific accessibility standards.
Many more states have legislation pending.
See our Resources and News sections for more information.