Marketing often includes discounts. Do you need examples?
Discounts that encourage loyalty are good when the margins remain acceptable. You have no idea what USAT's margins are. You seem to think they are high.
They are however significantly less than the vendors' who actually gives away a product. Your logic should be directed at them. Not USAT. USAT is a facilitator with virtually zero cost per electronic transaction. Their cost relates to how many swipes in a lifetime the equipment can handle.
I never implied you are a paid basher; only a basher.
Market Data 
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