Last time I bothered looking at Walmart's web site, the "best" part of my experience was that I was able to phone the local store, and a live human there quickly told me "No, we do not stock $Item. Ignore what our web store says." This was after Target wasted my time by saying the opposite - then after I drove to Target it turned out to be a lie.
I ended up buying from Macy's - which has plenty of its own issues, but for my n=1 had $Far_More_Upscale_Item on their shelf, a competent sales person on hand, and a sale price less than 2X Walmart's and Target's prices for $Item.
(Another fun story about Target - they stock items which do not exist in their inventory and check-out databases. I once bought a great gift for a friend's granddaughter there...after the in-store security supervisor found it (or pretended to) in some anti-shoplifting security app, and the store's manager made a snap decision on the price.)