Is anyone going to try to get a bottle of Aldi's 40 yr old malt?
It's alleged to be excellent. That said, 40 years is a hell of a long time, and I say there must be some intrinsic value in whiskey that sits for such a long time, whether its excellent or merely different.
I spoke to a dude at Vintage House on Old Compton in Soho, and he was saying a customer bought a bottle of 1940's Macallan for over £10,000. The customer gave him a 'wee dram' and he said it wasn't better than other newer whiskeys, but had a range of flavours he'd never encountered.
Highland Park 18 can be bought at Waitrose any day of the year -- might as well try something different and unique for such a low price.