If you are a fan of peaty whiskeys, The Balvenie’s 14 Y.O. Peat Week (2002 vintage) is extraordinary.
(As a comparison, my favorite “buy regularly” whiskey is Laphraoig’s Quarter Cask, with Ardbeg’s Uigeadial as a close 2nd. I often buy The Balvenie’s Carribean Cask because of its sweeter flavors. If I have the option, I’ll sit at a place like Angel Share in NYC and sip things like Bunnahabhain 25 or Mortlach 18, but I won’t buy those bottles on my own. This Peat Week, though, I think might have dislodged the Ardbeg for the close 2nd.)