While they've got a lot of mindshare, I have to wonder if they have a particularly deep moat. I know the appeal of Stripe was that it was easy and attractive;

While they've got a lot of mindshare, I have to wonder if they have a particularly deep moat. I know the appeal of Stripe was that it was easy and attractive; using their embedded widgets allowed you to keep a low PCI compliance profile. But similar products are rapidly becoming table stakes in the industry. When that's no longer your secret sauce, how do they fend off when merchants scale to a point where their finance guy says "We can save money by swapping Stripe for Brand X Gateway"