http://definitions.uslegal.com/p/price-discrimination/ http://definitions.uslegal.com/p/price-discrimination/ this doesn't address this case directly, but it s

http://definitions.uslegal.com/p/price-discrimination/ http://definitions.uslegal.com/p/price-discrimination/ this doesn't address this case directly, but it seems to say it's only illegal if done to harm your competitors.