#BuyAndTellPrice- Say No to Individual Price Discrimination

Ever wondered after snagging that deal on Amazon (45 % off!), whether it was the best possible deal? Did someone get better deal yesterday or last week? Worse still, is someone getting a better deal right now? It is now more possible than ever before for Amazon to price a product differently to different people (based on their assessed ability to pay or desperation/need for the product) at the same time, and no one is the wiser!  So let us start a movement #BuyAndTellPrice. Each time we purchase a product- not just rate the product but also write the price of at which we bought it.