If we hadn't adopted such a professional approach and schlepped to Gothenburg on one of Mr O'Leary's sardine tins (like many of us fans did), I suspect our European involvement would have ended there and then.
As for the 50k charter cost, bear in mind the plane has to fly from base to Derry (empty), Derry to Gothenburg, Gothenburg to base (empty). And then the whole way back again.