The problem is not an economic problem but a political one. The cost of Greece bailout is a rounding error in Europe's total budget, the test ahead is about how the EU can start unifying the economic policy and grow more cohesively.
Lots of countries gave up monetary control power but without a unifying economic government body it's absolutely impossible for the weakest links to survive with all their issues without some help.
Lack of real unification is the problem, not economy per se. I think this is your point somewhat, am I right?
I agree that the core problem is the lack of economic unification.
http://www.zerohedge.com/article/fatal-flaw-europes-second-b...
do you know where much of the money from Greece has gone all this years? Weapons developed by Germany, and German industrial products bought with loans by Greeks, like cars, cranes and bulldozers.
Do you know witch country benefits from a weak euro so the can export a lot?
The real problem is that there are or will be efforts by the EU to persuade e.g. Greece to heighten the retirement age, or Ireland to increase corporate taxes -- without proper democratic legitimization. That's scary.