Yeah, but for Costco it actually makes sense. Costco sells items that are big, bulky and hard to transport, and they already do a ton of logistics - supply chain stuff is a big part of why they remain profitable. Uber is trying to do something that other people are already doing, better, for less cost, without experience. It isn't working out.
Does supply chain expertise really carry over to last mile delivery though? Especially hot food delivery. Seems like Uber's strength is getting to where the customer actually is instead of putting the product where it is most economical.