Retiring a payment system is really the ultimate insult to those that invest in your platforms.<p>Imagine the bank that you use for your business transactions, especially recurring billing, to one day walk in and say: so sorry, you won't be able to process your old payments any more, but here is a new and shiny service that we think is better that you'll have to use from now on.<p>Never mind the integration overhead, possible loss of business, customer service issues and all the other headaches that can come from a thing like this.<p>I'm scared just to change bank accounts given how far those bits of information have propagated, losing a billing platform is a nightmare for businesses that rely on it.<p>Why would anyone switch to another service by the same provider that just chose to shut you down or that chose to saddle you up with a bunch of overhead on this years calendar?<p>Google partnering with braintree, shopify and freshbooks is the saving grace here.<p>In payment systems only two things matter: fraud control and continuity. Google excels at the first, drops the ball on the second.