The collector of Crested Ten is a very decent fella as it turns out. Presented me with this yesterday morning with the advice to keep it safe. As you can see I didn’t take that advice. Carpe Diem!
I agree that whisky rarely needs to be stored on its side simply because it is not going to be kept long enough for cork desiccation to become a factor. Not sure about ‘cork taint’ (or some such term) becoming a factor where ‘long haul’ whisky is concerned. Genuinely not sure but I have a hunch problems with whisky corks would have far more to do general storage conditions — humidity in cellar and so forth — than with cork per se.
I have just one sliver of experience on this front. Around ten years ago, I bought six bottles of Macnab 15yo from a Dutch guy who had an eBay whisky shop for a bit. Macnab 15yo, a once off single malt, was a bottling of Ledaig 1972, a superb cult whisky. Lovely story but I will leave anyone interested google it themself rather than rambling on even more…
Anyhow, this Dutch guy in the mid 2000s found two dozen cases or so of Macnab 15yo lying, forgotten, in a Scottish warehouse. He bought the cases, relabeled most of the bottles and sold them online. While I got through the bottles grand — and it is outstanding whisky — I could see there was an issue with the bottles’ cork. Nearly all of them were weak in some form — presumably from being stored, upright, in a warehouse (which would be anything but optimum cellar conditions) for nearly 20 years.
One last thing: never buy decent whisky on a ferry, because the constant vibration turns the whisky ‘gritty’ and inferior in taste and texture. Found out that point myself the hard way and later saw the science of it confirmed.
That assessment, after having a squint around online, might be a small bit optimistic. But you would get a nice three figure sum, in all likelihood, selling privately to a collector.