No need to pay full price at the sporting goods stores, when there is plenty of selection at the Nike Factory Store! This store always has sales and is a great place for footwear and clothing.
They used to have these really cool shirts that said "Las Vegas" with just the swoosh, however now that has been changed to a more flame look, which in my opinion doesn't look as cool.
Also don't come here looking for sporting gear, they have a limited selection of balls which aren't really at a low price. Overall though this is the first place I go when buying footwear!