Having the world reserve currency seems to have allowed them to - in a round about way - export inflation?
I wonder how much worse inflation and the value of the pound would be if the UK took the same path. They seem to have a hard time keeping a lid on it as it is (year after year promises of 2% that are never met).
I think its possible the US could lose its reserve currency status at some point (some signs its already happening). Will be interesting and frightening to see what'll happen then.