Take a look at Westvleteren 12. I highly doubt it's THAT good of a beer. I mean, I'm sure it's amazingly good - probably in the top 25-50 beers in the world - but I suspect a large part of it's extremely high ratings has something to do with the scarcity of it. It's legendary in the US in large part due to the fact that it's not available here.
It is pretty good beer and I've had it in Des Moines.