Erewhon is a luxury grocery store chain in the Los Angeles area, known for its high prices and popularity among wealthy individuals and celebrities. The store has been making headlines for selling a $12 cup of water, and it is set to expand to Orange County. It appears that Erewhon is not the only upscale grocery store, as other outlets are mentioning alternative high-end options, but Erewhon remains a notable example of a luxury grocery store.