For hosted customers, the database is already installed and
is no additional fee. For PHP/MYSQL users the database is
also FREE. However it does not include the drop-down list of
all US Cities and States -- that is an optional $9.99.
It is not a required component however it just assist you
and your advertisers from making spelling mistakes since you
must spell the city and state name correctly so that it
matches the database in order to work.