The first thing retailers will probably try is simply modifying their terms of service. I'm not sure what argument they'll come up with there. An analogy I'm t

The first thing retailers will probably try is simply modifying their terms of service. I'm not sure what argument they'll come up with there. An analogy I'm thinking of is, imagine the website has a box that asks you to input your age, then it shows you your price. If you put in a number over 40, the price will be higher. Now you can just put in a number under 40 and get a lower price, but their response would be to make it against their terms of service to "lie" about your age. Similarly, they will equate using "someone else's cookies" to lying and claim it is morally wrong and illegal and against their TOS. Even though what they're doing is discrimination.