[limitedsupply]

Usually the fairness that people seek in these situations is just the desire to dump the unfairness on someone else. E.g. the demand to extend the discount to 3-month old purchases ignores the fact that the people who bought a car 3 months and 1 day ago will feel more upset and wronged.

[Dylan16807]

More wronged? Maybe a couple very unreasonable people. In general I doubt it.

Also you can handle that with a staggered discount.

[limitedsupply]

More meaning they would have felt wronged even before that.

In general I agree that it’s unreasonable. Discounts happen, prices change, we can’t always time purchases perfectly.