Learning to count in Spanish will be a good idea, even if you are not going to Spain. I studied French in my college days. But forgot most of it now for the lack of using it. It always interests me when get an opportunity to learn a foreign language.
Spanish is the official language of Spain, most Latin American countries and Equatorial Guinea. World over, 21 countries use Spanish as their first language. Spanish is also one of six official languages of the United Nations.