And sure enough, inventory patterns appear to be fairly consistent, while revenue is rising. It's unnecessary to use much discounting, because the proper footwear is mandatory to play sports, but some discounting probably still occurs. Revenue growth may be due to higher unit sales or higher price points per unit, or perhaps both reasons. Let's face it -- some retailers, such as Nike ( NYS: NKE ), have been able to transcend the distinction between athletic and fashion footwear, and the newest styles have been spotted selling at places like eBay for well above retail price.