Wanna make a quick million?  Here's how:

Greece is going to be VERY Euro hungry for the next 3 months.  Fly to Athens with a big bag of cash.  All Greek people having relatives in foreign lands (with bank accounts) can send you bitcoin.  You pay their relatives in Euros.  This remittance operation would be insanely busy in about 5 days.  You'd need a courier and body guard each day flying in with new cash. 

Instant millionaire.