As a selfish consumer, I really couldn't care less who gets what share. I only care about the price. How walmart arrives at that price is their problem. Should it be higher than elsewhere, I'll go elsewhere.

What we are seeing is a p_ssing contest between two big hitters that has spilled out of the boardrooms. These negotiations happen every day without us hearing a peep. Perhaps I'd be mildly interested if this was a spat between walmart and farmers or some a sympathy-worthy small business, but this is Visa.