I know from personal experience that the prices quoted on Walmart.com for items in the store can be drastically different from the actual shelf price in store. For example, I saw a large power strip on Walmart.com for about $10.97 and it said available for pickup today at my local store. When I got to the store the shelf price was about $19.97. I complained and they gave me the online price. Since then I always order walmart stuff online and pick it up. Same thing with an Ink cartridge and Headlight bulbs I purchased. Big difference in price.
@SGm5SVx-1tsz posted this on Sears page, but I was wondering if it's true? What would be the reason for this?