Sure, but restaurants have special needs relating to getting groceries. When they want "avocados" they don't just want any case of avocados. They may want a case of "locally sourced Haas 40's with 4-5 day ripening time with a USDA Grade of #2 Combination, or #2, but not #1". Not just avocados. Instead of wanting "bread" they might need an artisan bread with a gluten free recipe that's standardized to 16oz weight for their lunch sandwiches. So it's not as simple as it seems, which is why there's dozens of huge billion-dollar companies who do this such as Costco, Sysco, US Foods, Shamrocks, etc. You just shop around and stay on top of food costs. And if you're a medium-large chain you lock down trade agreements much farther up the supply chain (producer level) to very low fixed prices for 6 months at a time. So if amazon wants to try to tackle dozens of intricacies for thousands of types of perishable goods that will have variable quality in a market that is heavily regulated by the USDA, more power to them. Source: I own a restaurant on the side.