ON THE SURFACE OF IT, allowing customers to pay one subscription fee for Star Choice satellite service at their home and cottage is a very consumer-friendly idea. Most folks, Star Choice is assuming in offering this deal, generally aren’t in two places at once and are instead watching TV at home during the week and then at Lake Whatsit on Saturday and Sunday. Why not offer to let those consumers pay just one subscription fee? It'll engender loyalty after all, because who doesn't like to pay less? But it's never that simple, is it? Videotron named the practice "account stacking",...