"Perhaps the best comparison would be between Crystal (sic) and Cava. Both are essentially the same thing, fizzy alcohol, one is bought by people trying to impress while the other is bought by the average Joe that just wants a fizzy alcohol that they think tastes nice."
Cristal is the brand name of a Champagne produced by Louis Roederer.
Cava is a Spanish sparkling wine mostly from Catalonia (fyi: Spain)
So, you spelled the name of one of the premier products of one of the most famous Champagne Houses (I spared you the French there) incorrectly, and followed by comparing it with a generic wine classification from a different country or origin. Yep, it is clear to me which of these two drinks you might prefer, and exactly why.
You are correct in that Champagne (incl. Cristal, but you chose Cristal because it's probably the only premier product you can name but I will include the classification as a whole here) and Cava are consumed by people who want something that "tastes nice". I suspect that this is true of every recreational beverage!
Your distinction however is arbitrary and in fact wrong. If one labelled "Manuel's Cava" as Cristal it would sell vanishingly close zero bottles because it would taste like Cava and not Champagne. People drink what they like, limited only by what they can afford. Very few people drink anything they don't like because it happens to be expensive. This is an idea that envious poor people have to make them feel better about being poor.
Millions and millions of perfectly ordinary people like Champagne because it "tastes nice" and they drink it regularly (check out the production volume from Champagne). Cristal is one of many fine examples, and one with a curious history as it happens.
The best wine is the one you like the best. The rest is training, perception and physiology. Like walking, it takes practice to learn about, understand and appreciate wine. There is no requirement to do so and most people don't make the effort.
Anyway, keep on drinking your 7-11 Cava in ignorant bliss, and enjoy every drop!
I'll take a rain-check on it if you don't mind.