Isle of Man
The beer is not cheap and the nightlife is rubbish, although you will get plenty of tax breaks. There are plenty of films shot here for this very reason, including 'All the King's Men', 'Waking Ned' and 'Treasure Island'- all rubbish.
Lots of pretty ugly men and not-so-bad-looking women, so good chance of getting laid. Worth a visit during the TT, where the chances of getting laid improve by 100%.