For Tim cook to say that NFC is in it's infancy is just ignorant. Outside of his country, it's widely embraced. HTC and Samsung (and others) seem to recognise this.
I'm not sure, In the UK, I'm only aware of McDonalds taking NFC payments (because they had a poster up stating it, until the refurbishments). Other may have the facility, but i'm not aware who they are, they certainly don't advertise it or push it. I've have an NFC credit card for years, never used it, never been offered the choice of using it.
For me, even though passbook is basically limited to Starbucks, it's still more use than NFC to me. Not that i'm against it, I just don't see it as a needed feature at the moment.
Perhaps a combined passbook/NFC system may take off. I've always worried that a successful passbook may be stifled by the need to maintain numerous small balances on different cards, so a 'central bank' such as your iTunes balance, would be needed to stop people having to manage 20 different cards, each with a £10 credit on it.