Counting around 329 million native speakers, Spanish is the world's No. 2
language in terms of how many people speak it as their first language. (Source: Ethnologue). Whether for business or pleasure, Spanish is undoubtebly one of the main languages of the world.
Apart from that, learning Spanish can be a very fun and enriching experience, opening the door to a very diverse world in terms of food, cultures and environments. Spanish is spoken in over 44 countries, including the United States, Mexico, Chile, Equatorial Guinea just to mention some, all united by a common language.
I invite you to take on the challenge to learn Spanish or any other language you may like, this is recomended even on health grounds. It is well known learning a second language can help degenerative diseases of the brain such as Alzheimer. http://www.cbsnews.com/stories/2011/02/18/scitech/main20033422.shtml