The discount shoe company Shoe Carnival (NASDAQ: SCVL ) might look like a value trap at first glance. Its flagship Shoe Carnival brand provides an entertaining shoe shopping experience for low-income customers. And because of economic weakness, it appears that many of its customersI am a freelance business writer. I formerly wrote articles for the Motley Fool Blogging Network, where I won several editor's choice awards. After that, I wrote articles for the main Motley Fool site. I typically focus on restaur ...