For a couple years the headline story about Chartreuse was that it was becoming impossible to get (which is annoying because it's an important ingredient in a bunch of super-popular cocktails, most notably the Last Word), owing to the monastery allocation scheme. But last I heard, you can pick up both the Yellow and Green at Binnys, which is the neighborhood liquor store chain in Chicagoland.

The Carthusians make an interesting story, but what I think is the bigger story is the collapse of the liquor market broadly. I think but can't cite sources that what's happened is post-pandemic shifts pushing bars out of business, and bars in turn significantly cutting back orders. Whatever it is, Eagle Rare was supermarket whiskey in 2010, was an back room allocation whiskey in 2021, and is back on the shelves again. Pretty much every whiskey is now gettable in a way it wasn't just a couple years ago.