[icebraining]

yes, this can be implement with Bitcoin

No, with Bitcoin, you don't need PCI compliance, because there's no way fir the merchant or someone who hacks it to steal your wallet from the information they get. You only need to audit the exchanges / only wallets (the current equivalent of banks, which get audits anyway).

And by the way, the proof that those costs are not inevitable, is the fact that some countries like mine (Portugal) are already using sane push-based payment systems for decades now. and they are cheaper and easier for merchants than CCs. The advantage of Bitcoin is that it works internationally.