It is the intent of the Legislature to encourage state organizations, cities, counties, districts, and other political subdivisions to purchase products manufactured by and services provided by public or private nonprofit California corporations operating workshops serving individuals with disabilities whenever it is feasible to do so and the proximity of the public or private nonprofit California corporations operating workshops serving individuals with disabilities makes the purchases reasonably convenient and to provide equality of competitive advantage for organizations operating workshops for individuals with disabilities and organizations operating workshops for individuals who are blind.