Interesting… In theory, this is 100% true. I have been fascinated alike by a $400 bottle of Krug as I have by some cult grower champagne that you’d be hard pressed to find in a shop, not to mention on a restaurant list, such as the Flavien Nowack La Fontinette which is interesting because not only is it around $100, it is 100% Pinot Meunier, considered by many to be the least “prestigious” grape varietal used in champagne production. And yet it’s delicious. But I dislike the comparison with Cava. Like with Prosecco, the Spanish Cava presents such a departure from the coordinates and associated terroir of the champagne region that the difference in taste is really dramatic. Cava is lovely, but you might just like the taste of Cava. I wouldn’t say that this is some dramatic revelation on how “worth it” expensive champagne is whereas comparing different champagnes at different price points would be much more revealing, for however much stock you put in such a comparison. Me personally, I don’t. I trust quality, and I know that the market controls pricing outside of quality. Dom Perignon is wonderful, but it isn’t the best, there are less expensive producers that are better and, on the other side, more expensive producers (I prefer Krug and Jacques Selosse).