sorry i was scrolling through this thread...
I've been fortunate to regularly have had the Hibiki 17 and 21. Strictly from a taste perspective is this 100 anniversary considered ummm ummmm more yummy? and how much more tasty? I have a few bottles of 17 / 21 left from pre hype pricing days that i am going through.
I'd only try to get the 100 anniversary to try and drink it - not to resell