Econ 101,

I totally agree with you on the subject of Wal Mart and the quality of goods.  My brother in law works for Wal Mart as a Dairy Department Manager and he will be the first to tell you that quality takes a back seat to profit.

I also agree that Wal Mart can hurt the beef industry by misleading consumers about the quality of beef.  When the average urban housewife hears Grade A she automatically assumes quality, and then has a bad experience with a cut of beef.  It will not take many experiences before she is buying more chicken or pork.