If I had a lot of money to spend on food I would be spending it at the farmer's market: the best in-season, fresh local produce, picked hours ago. The freshest eggs you can buy. Artisan meats (think sausages, bacon, salami, etc. as well as just plain meat). Fresh-caught seafood. Fresh pastas. Local yogurts and cheeses (some cheeses are best eaten very fresh and with no preservatives, like mozzarella, ricotta, cream cheese, etc.). High-quality breads and bagels. Maybe some time-saving prepared foods made with fresh, whole foods (at my farmer's market they have homemade soups, hummus, ready-to-heat casseroles, things like that).
These are all things I have at the farmer's market five minutes' walk from my house, and if I had 5x the net worth I have right now I would be doing a ton of shopping there every weekend. It all looks amazing but is priced accordingly.
And I would rather support local farms than Amazon or some other giant corporation.