Launch sites in Alaska, California and Maryland? Why? We have poured billions in Cape Canaveral.
The Maryland site has been operational for decades.
Wallops Island launch facility was opened in 1945, years before Cape Canaveral began development as a missile launch center in 1958.
Wallops History - Launching Excellence Through the Years Established in 1945 under NASA’s predecessor, the National Advisory Committee for Aeronautics (NACA), Wallops is one of the oldest launch sites in the world. Our support of scientific research and orbital and suborbital payloads places us at the center of NASA’s space and Earth sciences.
Built to conduct aeronautical research using rocket-propelled vehicles, Wallops launched its first rocket on July 4, 1945. Since then, we have fulfilled our mission with the launch of more than 14,000 rockets.
http://www.nasa.gov/centers/wallops/about/history.html