The year of 2007(by the moon calendar) is the year of the pig. Pig is symbol of health, good personality, wealth, etc.... in Korea.
Many of Korean media says this year is the year of the GOLDEN pig. It is known as good time for bare a baby.
But as far as I know, that is wrong information and is only related to commercialism.
Anyway, Golden Piggybank is very cute(expensive!). :)