Wal-Mart prices

I am now convinced that Wal-Mart has the lowest pricing for virtually any product you need. Sure, now and then you can buy 8 pounds of oranges at Ranch Markets for only one dollar - one dollar, yes - but it does not happen every day. We wish it did. How does Wal-Mart do it? I do not have a clue. The aisles might sometimes be messy and unclean, but hey, nothing is perfect. Sorry.