Welcome to the 28th installment of The Wal-Mart Weekly, a column dedicated to bringing you insight, wit, facts, results, opinions and just a bit of everything else when it comes down to a very hot topic these days: Wal-Mart.

This past week, I discussed Wal-Mart Stores Inc. (NYSE: WMT) and the continuing strategy the retailer has with low prices leading the way to snagging more sales from customers.

The company and many of is execs continue to square off against the retailer's image of "always low prices" and into more higher-margin goods, but my opinion is that any strategy right now outside of continuing to lure customers with low prices for this company seems to be stagnant.

Can the retailer break free from its image as a big-box retailer with only low prices to offer its customers? That remains to be seen, but so far in 2007, nothing has changed from the movements I've seen in most Wal-Mart stores.

This week, I'll look at what's wrong with the retailer in two separate segments. First off: market saturation, gaining new customers and squeezing every penny for what it's worth.