@skinnylatte I used to shop occasionally at Costco but didn't like it. Found BJs better for range but we didn't binge-shop, and always pined for things like a freshly caught fish. Fresh fish is very much a foreign food in the areas where we lived. But there was one Chinese fishmonger in a crappy neighbourhood of New Haven in Connecticut. We used to walk over to his shop every week or two. Most of the stock was conspicuously stale, and his market was fine with it. He'd always tell us which ones were fresh in the sense that we like, versus fresh in the sense that most of his customers like.
We had a Japanese friend who wouldn't touch fish at all after his first taste of sushi in the area. "It tastes old, like it was caught yesterday," he said.