Intuitively, that makes sense, but isn&#x27;t it also pretty well-accepted for a retailer, reseller, or other &quot;middleman&quot; not to disclose their costs?<p>If you go to Walmart, you don&#x27;t expect the price labels to say &quot;$0.50 Kellogg bulk unit cost, $0.80 retail storage fee&quot;; you just expect &quot;$1.30&quot;, and the store&#x27;s costs are their own concern.<p>It would certainly be a nice thing to do, but we generally don&#x27;t expect retailers to facilitate you buying from their supplier.<p>On the other hand, retailers also probably have explicit permission from vendors to resell the good, which DoorDash doesn&#x27;t.