You’re right but that’s actually not the part I’m talking about. Specifically the fact that even though we are all “being charged the same price,” as prices increase, the amount I am saving increases as well due to cashback or other benefits on a credit card. And because I am spending less money, I ostensibly have more money to make my credit better, which means the benefits only increase on top of that.

It’s a variation on a theme we are all very familiar with. It’s expensive to be poor. But this is another angle I hadn’t really considered. It’s a little more complicated than just “I can have better cards with better benefits.”

TL;DR: The actual cost per item for me is, in very literal and quantifiable terms, lower as a result - and the more expensive things get, the steeper my discount gets while the person next to me paying cash is paying a little more than I am every transaction for the same items.

Put another way: As price/inflation increases, the real number I am saving increases as well. So we aren’t just paying different prices, but their increase is also higher the higher prices get.