Gonna be a long and slow road. Hopefully this doesn't end up a niche like thunderbolt / firewire / etc. I'd love to be able to just go to the grocery store, pick up a few things, flash my phone and be done. But it's a ways from getting there yet.
Well TB and FW flopped because they were just too expensive for too little benefit.
With ApplePay, Apple expects a cut of every transaction, it's more expensive than debit or credit processing. So what's in it for the retailers. Fanatics on this forum may take their business elsewhere. The average person will keep their plastic, in which case why should any retailer pay the Apple tax?
PAY!!!!!