Older single cask Caol Ila is terrific to behold, but my heart lies with the Glen Ord single cask bottled for Singapore, with it's old-fashioned resin and pear drops notes.
I also got a bottle of this before Ben Nevis prices spiral any further out of control. Bidded up by opportunistic collectors and speculative "whisky investors" who aren't drinking whisky. Some rough edges, the age definitely shows itself, but also full of apricot, acacia honey, beeswax notes, and at a lower price than the standard Ben Nevis 10 bottling.