What exactly did you need to pay for? Twitter, after all, is free for all for the most part, and at the very least it would cost you nothing to simply gather some followers to look out for new trends in your business. Also, what exactly is the nature of business? This is an important question because it ties up with your own question. When you know exactly what your business is and what things would work well with its implementation, you'd then know whether or note social media marketing through twitter is worth it.