Discount retailers, on the other hand buy up all of the inventory that a manufacturer has left when it goes on clearance. These are the buy email database super discounted shoes you may find on e-bay and other stores. The advantage to having this type of store is that the retailer knows exactly how many shoes they bought, so their stores will track the buy email database inventory for them. The advantage to the customer is that you can usually expect that if the website says the shoe is in stock, it probably is. The disadvantage to the buy email database customer is that it costs a lot of money to maintain inventory.
Shoes get shipped twice (once to the retailer and once to you), inventory control requires employees, and as a result, the retailer can't buy buy email database as many styles. This means fewer options for the customer. Shoe stores buy email database that don't carry inventory are working in a little different manner. Instead of listing only the shoes that they have on site, they list in their store everything that the manufacturer has to offer and buy email database when an order is placed, the retailer then arranges for the manufacturer to ship the shoe.
The advantage of this type of store is that they can offer a wide diversity of shoes without having the costs associated with buy email database inventory. In addition, the shoe is only shipped once (directly to the customer) further reducing the costs to the retailer. Because of the reduced costs to do business, this model generally means that the buy email database retailer can offer the shoes at a lower price. The disadvantage is that the retailer has no way of knowing if a shoe is in stock until they arrange shipping with the manufacturer. So buy email database when a store says that a shoe is available, what they really mean is that they are able to sell this shoe, not that it is in stock.