Walking into sterile Western-style grocery stores, you wouldn't know that plants were grown in soil. The produce is unnaturally pristine and looks like it's been taken straight out of a magazine. But, the reality is that most food isn't picture perfect.
I have a hard time understanding the aversion to "Chinatown" grocery stores. Many don't shop at them because they're smelly or dirty. But, if you look at where food has been along the supply chain, you'd likely find similar environments along the way. People need to get over their aversion to "ugly food" and realize that it's still perfectly good to eat.
Lower prices don't necessarily imply lower quality. Because these "Chinatown" grocery stores are tapped into a different network of farmers and they're less picky about how attractive their produce looks, that's tantamount to comparing apples and oranges.