Not for shoes, but for knowledge of your competitors.
If you don’t, know that they are shopping you. You shop to know what the competition is doing so you can use that information to separate yourself from the others in the industry. If you are doing something innovative, you better believe they will be copying it shortly. The key to getting customers is to be remarkable and you are not remarkable if you don’t stand out. Be sure savvy competitors are shopping you by the web, phone and in person.
Shopping is fun — have you done any lately?