sure, but tourism will not remake Greece. Even before it joined the European union it could have never survived via tourism, only. Should Greece exit the EU or even just the Euro then Greece's shipbuilding and various other industries will be vitally dependent on its European neighbors and Greeks should be fully aware that they will reap what they sow now. As I said time and again, the choice is theirs but the repercussions of their choices will be strongly felt throughout each aspect of their economy for decades to come. And of course, forget sipping Margaritas and driving Benzes. Its gonna be down 5-6 notches on the living standard scale. I hope they really know where they are heading squeezed in between an arch nemesis and a collective bargaining power whom they abused, lied to, and cheated for years.
Once the smoke and fire cleared from a Greek exit (and I am in no means suggesting it won't be carnage - but the Greeks will survive) cheap tourism to a country of beautiful islands and culture (ignoring the chaos from bankruptcy) will bring Europeans, Asians and Americans to Greece much like it did in the past.