Is Campbeltown Loch Made of Whisky?

[f4f3]

Because if it isn't, I can't understand how Morrisons can afford to sell Ledaig, a very pleasant single malt from Tobermory, for the princely sum of £13.19. (And yes, I know, Tobermory is nowhere near Campbeltown, but no-one ever wrote a song called "Sound of Mull, I Wish You Were Whisky",

I'm sure that's less than it was 20 years ago, when I started drinking single malts...