First which altcoin is offering credit/debit cards?
I think there are many already one of them is Graft, another one from open ledger, don't remember the name.. but maybe there are others that already are available for the crypto owners that want to pay all their stuff only with crypto via crypto debit/credit cards?
What about dash or tenx, but you can't pay all of your stuff using the altcoin. I mean that will be related to the ico that already dedicated its development in the virtual payment such as debit or credit card, it seems uquid and centra should be the best things.