The term upselling designates a sales technique when you induce a customer to buy an upgraded or premium version of your product.
It's one of the most efficient techniques to increase an average spend per customer. Some of the most common upselling examples are "Supersize" portions in fast food restaurants, plans with premium customer support or added value offers (hotel rooms with a view on historical sights).
Upselling is often used with cross selling, when you sell an item in a bunch with a complementary product, for example a non-stick frying pan and a turner or a camera with a memory card.
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