Discount codes. If the storebus out if stock of what you want, then you can get it online. If your one that does not like crowds then the online website is the place for you.
It depends on if you need to swatch and test colors before you wear them, but I think it is easier to buy online for the most part. There is free shipping on orders over $50, and with the price of the products that wouldn't be hard to go over.