I don't think Whale-Mart is evil, per se, but given the average girth of their clientele, I find it distasteful from an aesthetic and health perspective. Their stores also tend to be overly crowded.
I rarely shop there, but I might ride my bike there this evening to buy the new Eagles CD.
FWIW, I remember when Whale-Mart first expanded to the small towns in the South. They prominently featured "Made in USA" on most of their products, and appealed to Cold War era patriotism...now, try and find anything in their stores that wasn't made in China.