Spanish is becoming more and more important with regards to business. Learning Spanish will enable you to better communicate with Spanish speaking employees or co-workers. Wouldn't it be nice to be able to offer your product or service to the 350 million people whose mother tongue is Spanish? In North America, Hispanic consumers are the fastest-growing market segment. As for job opportunities, it certainly wouldn't hurt to have Spanish on your resume.
In the United States, knowing Spanish can be particularly helpful if you work in healthcare or education. Increasingly, the building trades are employing more and more Spanish speaking workers. One thing is certain. If you are bilingual, you will be more marketable and have more career choices than your monolingual counterpart. Globalization, with it's accompanying free trade agreements is shrinking the business world, and those who know more than one language will definitely have the edge.