In a sense; the example I was implying is this. Imagine you have a merchant, 100% of whose consumers come in and use Amex or some premium card. That rate is far above the base rate we charge them, and we eat that, in a sense. So in that sense we are offering that value to them. Conversely, if people come in and are using just a blend of different cards, then it's hard to judge whether it's a benefit or a relative cost.
On February 13th, 2014. See this statement in context.