It's not better quality food anyways.
https://www.youtube.com/watch?v=c_IoNQHMFLk
Captcha: amateurs
That video is about the difference between organic and non-organic. I agree there's no difference in taste.
Whole Foods isn't just about organic food. Sure they market it like that. There's a ton of bullshit in their marketing: natural = healthy, organic = healthy, additives = unhealthy and a whole host of other bullcrap. They sell homeopathic "medicine" FFS, of course they're full of bullshit!
The simple, gullible people of this world are easily sold on the fact that it's "natural" and "organic". They'll happily part with their money for suce nonsense. However, just because Whole Foods are pushing bullshit marketing doesn't necessarily mean the food isn't genuinely of a better quality.
Bbehind all the bullshit, the food is genuinely better quality. I only know the flagship store in Kensigton, London, so I don't know how that differes from US stores or "regular" London stores, but the quality to me seems undoubtably better.
Most of it seems down to freshness. The most well known "upmarket" food store over here is Waitrose, and the difference is unbelievable. I buy quail eggs from Waitrose and more often than not they are rubbery and have clearly been sitting on the shelf for too long. The air sac is larger which means they've been in storage for longer as the amount of air let inside the shell is directly proportionate to the time they've been exposed to air since hatching.
The differenct varieties of a single food item is much better in Whole Foods. In the south-east of England, fruit is the main food crop. If you go into a regular food store, you'll see the same old varieties sold over and over again. For apples, you get things like Royal Gala, Pink Lady, Golden Delicious, etc, etc. These are chosen because they are varieties that produce large fruit in abundance and make more produce per acre of land. The varieties that taste better aren't such abundant producers so they don't get stocked by food stores that focus on cheap prices.
The meats are better tasting, because they've been aged for longer in the right conditions. This costs more but produces a better product.
The fish is fresh. It's not been sitting around on a boat off-sea for weeks, it's often caught in dayboats which means it was caught within the last 48 hours. This costs more, but improves the product.
The wine is better because it's from smaller vinyards that focus on quality rather than mass production. The large food store chains can't do this because they need to reduce the number of suppliers they have to reduce overheads.
The fruit and veg is better because it's been picked wen ripe and transported quickly. Most food stores buy the food when it's unripe and have it ripen in slower means of transit.
None of this has to do with whether it's organic or not and in fact I ratrely buy organic from Whole Foods if I have the choice.