Yeah, as a practical matter, I'd agree. Greek tourism though is important to the economy of Greece, and US travel overseas has been off lately. May have something to do with the price of hydrocarbons, or due to the sluggish US economy (which is an outgrowth of the steady rise of OPEC oil), or due to the anti-US thugs who remain in de facto control of European streets.
Another reason the tourism business is off is that the Greeks weren't very hospitable to US visitors to their Olympics.