Little Toe, your post prompts a question. Is American bourbon commonly offered in your pubs and package shops? Is it priced a lot higher than domestic Scotch?
As I recall from pub hopping in and around London, Scotch was just as expensive as in the US. I bought a bottle of White Horse at a shop in Oxford and after converting the price to dollars I felt I could have maybe beat the price at home. Of course, it tasted better over there.