http://resellerassociation.com/difference-between-a-retailer-and-reseller/
Both retailers and resellers are businesses that purchase items, stock and sell them to make money. They can be found on the internet, through brick-and-mortar stores or both. They purchase from wholesalers and distributors, and then resell it to businesses, consumers or consumers. While many types of resellers exist There are two main kinds that are Private Labeling and Dropshipping. Private labeling is the process where a reseller rebrands the product of an organization by adding their name, logo, and packaging. This kind of reselling practice is typical in the technology industry where a computer maker might offer their own hardware, in addition to third-party software and accessories.
Another method of reselling is bundling. This is when a reseller bundles similar products from different companies to make an attractive package. For instance, a retailer might purchase digital cameras memory cards and Photoshop Lightroom software from different manufacturers to create kits that help new users get started with digital photography.
Retailers usually purchase bulk purchases from distributors or wholesalers and then sell the products at higher prices to consumers. They also sell through marketplaces on the internet, such as eBay and Amazon. Retailers offer a range of added value services, such as customization and technical support. They can add additional fees such as handling and shipping costs. Home Depot, for example may charge more than Walmart because it has its own store and is able to handle logistics like storage and delivery.