Ireland might not be too appealing. While the corporation tax here is maddeningly low for companies operating elsewhere in Europe, brewing could be the one industry that a multinational wouldn't bother with because excise is so high. They could put their accountants on it and see how it all balanced out. Google recently did the British exchequer out of 1.6 billion quid by routing profits through Ireland.
A craft brewer with some cash and an aggressive advertising style would be very welcome. It might shake things up a bit, but Stone are still small fry compared to the big guys operating here.