Nearly one-third of Walmart's online shoppers in the U.S. are willing to pay $10 extra to get their goods sooner — and the added cost is helping push the company's e-commerce business toward profitability.
Walmart says express delivery purchases will arrive in two hours or less and in March it announced an "on-demand" early morning option that starts at 6 a.m. and gets items to customers within 30 minutes.
