If you want to buy good meats and produce, you'll have to expand your horizons beyond the supermarket.
While that's certainly good advice, Boar, it's not always possible. And the fact is, Calfornians, by and large, are spoiled silly when it comes to availability of fresh produce, seafood, and animal proteins.
Try living in the rural south for awhile, and you'll discover what kind of culinary desert much of the country is. For me to expand my horizons, for instance, would require going to Cincinnati, two hours away. So what for you is a 45 minute drive is four hours for me. But it's not just the four hours. Being as I know nothing about the existence and location of ethnic and specialty shops, I'd have to spend many hours ferreting them out. Indeed, somebody asked me, the other day, if Cincinnati had a Chinatown, and I had to respond that I haven't a clue.
I have spent the past several years ferreting out such shops in Lexington (half hour away, btw). There aren't many of them, and none like the ethnic markets you're used to. Often enough they're actually restaurants, with a shelf or three of related products.
With a SMSA of 650K, there is one market serving the entire Asian community; one serving Indian and Mideastern; one specializing in middle-European foodstuffs. Etc. There's a convenience market attached to a Japanese restaurant, and a similar "market" that's part of a Cuban luncheonette. There is a supposed fresh seafood market. But the miasma that hits you in the face when you enter let's you know how bogus that claim is.
None of these places are located on main drags. None of them advertise. So it can, literally, take years to find them. And then they go out of business.
For us, a typical shopping trip means a day in Lexington, traveling to as many as 8 or 9 stores plus more than one supermarket just to do basic shopping.
Locally I have the aforementioned Mexican market, and several supermarkets.
So, while I have expanded beyond the supermarket, it's a difficult task. And one that, realistically, most people are not going to take on. Nor do I blame them.
Nor is it a problem confined to the rural south. When I lived in northern Illinois, for instance, to find anything not supermarket quality meant a trip to Chicago, 65 miles away. And I have friends in Wyoming who drive 85 miles to the nearest supermarket.
So, why "expand your horizens....." is a laudable goal, it's just not practical for a significant part of the population. The only way they have of doing that is via the internet. And that, of course, has problems of its own.