Seeking Alpha shows off this Compete.com chart showing how Google Checkout usage has fallen dramatically since December:
What happened after December? Well, Google stopped giving almost every Google Checkout user twenty dollars just for shopping. Like I said before, if you have to pay users to use your service, then it doesn’t deserve to succeed, and shoppers are agreeing. I don’t understand why Google Checkout needs to exist on websites like Buy.com, that have no problem processing credit card orders normally, and Google needs to find an excuse for their system. At least PayPal has a bank account.