True. Though, a 'huge' discount shouldn't be necessary. Any incentive is what will slowly move us in the right direction. It ultimately comes down to a fundamental question: Is bitcoin an inherently less expensive payment system to collectively participate in than fiat? If so, then the incentives - no matter how small - already exist for both merchants and customers to be able to benefit by using it. If not, then this is a lost cause from the get-go.