So many crafts involve fabric and sewing that it's worthwhile to have a reliable sewing machine. If you're a skilled seamstress or tailor, and will get good use out of your machine, it's worth spending a bit more for one that has advanced features.
Two of the big name brands are Singer and Brother, both of which carry a range of machines that vary in features and price. Husqvarna Viking and Pfaff manufacture higher-end machines that can do specialized tasks like embroidery. A good sewing machine will cost a few hundred dollars, while a more advanced model could easily cost $1,000 or more.