I wish I had faith in Walmart's ulterior motives. Unfortunately, having seen enough, the only thing this does is help to further pound the nails into the coffin of the mom and pop shops that were already struggling to compete.
Back in the days that I used to shop at the Sam's and Walmart stores, I was buying something at Sams. I went to walmart later and found that the exact same item was actually cheaper in walmart. how freakin' rude!