Or, they'll raise their fees to increase revenue once they decide to exploit their monopoly. This has already started happening with the introduction of their

Or, they'll raise their fees to increase revenue once they decide to exploit their monopoly. This has already started happening with the introduction of their Billing product which begins charging for basic features that were previously free. We'll see a slow migration away from the flat 2.9% + 30 cents --> much more complicated and expensive pricing models.