I'm heading to Osaka and plan to visit the Suntory distillery during my stay. I'd like to get a gift for someone who is getting married and really likes Yamazaki. Does the distillery carry anything that can't be found at a retail store or duty free (and preferably something that can't be found in the US)? All else being the same, is there any reason to buy at the distillery instead of duty free or retail?
Would there be any issue with bringing a bottle (or 3) with me while I TWOV in China?