Once English footy goes Cardiff's not left with much - rugger, few Welsh footy internationals, some concerts - and a huge debt to pay back.
Might even be in a position to get it a bit cheaper or even on a different date as one of the stadium's major users
PS Why not Hampden for a European Grand Prix, Glasgow's just as good a weekend out and Edinburgh, Glasgow, Berwick and Workington could come up with something special to go around it