I must say that during my past professional life I regularly visited the States (mostly NY and New Jersey; on one occasion Atlanta and Miami). During those visits I was usually taken out a night by one of my colleagues, and I did visit a couple of good microbreweries. There was this microbrewery in Princeton where I had a couple of damn good "Guinness-like" ales.
(there was this one restaurant, also in Princeton, where the bill came in a leather-like folder with the text "Corsendonck". Not bad for a small -and not that good- Belgian beer).