They raised prices for online orders. Now stuff you buy online is not the same price as you get in the store, I used to buy a lot of stuff from them for delivery, now I don't.
I personally wouldn't mind slower shipment and lower prices. But I guess that's a hard sell in today's world.
"Walmart's e-commerce sales growth in its U.S. business slowed to 23 percent during the fourth quarter, a sharp decline from 50 percent in the third quarter. It noted last year's results got a big boost from its acquisition of online retailer Jet.com."
http://www.chicagotribune.com/business/ct-biz-walmart-earnin...
I think that would be expressed as an option for "combine my shipment with a bunch of others going to my neighborhood until there is a full tractor trailer load, or 30/60/90/120 days elapsed, and pass the savings onto me", because ground shipping is already available and about the slowest available standard shipping. Solving that logistics problem would be a strategic advantage, as it becomes a hairy optimization problem but with big savings over time, and offering this option opens up supply chain planning strategies that are now closed to us.