I'm not talking about Wholefoods, that's overpriced here as well. I'm talking about a slightly grubby supermarket in an unfashionable part of Brooklyn about 5 years ago. Maybe food prices vary a lot across the US, they don't really in the UK as the big 4 supermarkets all advertise their offers nationally. Smaller supermarkets can be more expensive, but an extra 20% not 300%.