Your cousin's got it!. Some japanese single/pure malts are really amazing.
Personally I like the blended Hibiki Master's Select the more of all japanese that I've tasted.
Dunno what he's got, he's got a whole shelf of them at his joint, he goes to Japan once or twice a year to ski, always comes back with more. He's got a bunch of bottles he bought years ago that are now worth big $$$