Retail clothing stores use in-store displays to showcase the look and style of their clothing (dressed mannequins, prints and pictorials of models, etc.).  And, much of the clothing these stores sell is similar (based on trends).  If retailers feel their quality is superior to the competition, then they should showcase this in a much more direct fashion.  Here's an idea: with the "in-store displays", pick exceptional looking outfits from your store, then pick very similar looking outfits from a competitors store (make sure they are cheaper looking, and less flattering).  Showcase these in two in-store pictorials, with the same models.  Display them directly next to each other: one wearing your stores outfit, and the other wearing the competitions (obviously not giving the competitors name, instead using titles like "theirs" and "ours").  This direct visual, of the same person wearing two seemingly similar outfits, but looking completely different (and less appealing in one), will contrast your clothes with your competitors.  And is a great way to showcase your superior style, fit, and overall quality.  But, as I stated before, the key is choosing and displaying the clothing they sell that looks inferior to yours.  And if you sell high-end clothing, this is a perfect ad technique for you.  Because even if prices are significantly more at your store, this is a way for customers to justify and feel more comfortable with their spending.