Didn't they say the same thing about Google Checkout and Google Wallet? Yet nothing has changed.
If I hadn't ever created a PayPal account in the first place then I would have no motivation to make one. With Amazon I already give them the credit card info to make purchases on Amazon. PayPal is just a middle-man so I have no reason to use them already.
Well, except that PayPal lets you receive payments too. Now that I think about it, I believe I created my PayPal account originally to accept payment for a website job. Only later did I add my credit card to make eBay purchases. So I can't completely replace my PayPal account with Amazon services yet.
[1]: https://plus.google.com/u/0/+HugoBarra/posts/R5YdRRyeTHM