They couldn't find anywhere to lay any more off. http://news.yahoo.com/uk-bookmakers-suspend-betting-greek-euro-exit-124203207--business.html
can still bet on intrade Any country currently using the Euro to announce intention to drop it before midnight ET 31 Dec 2012 43.3% CHANCE http://www.intrade.com/v4/markets/contract/?contractId=713737
I will bet on anything as long the odds are in my favour, happy to make a bet, as long as I dont lose money