You know that health plan margins are too high when you see who the latest entrant into the business is. Yup, Walmart, the 800lb gorilla of brutal discounting is now offering health insurance for small businesses via it’s Sam’s Club. Those providers who’ve been complaining about harsh discounting from aggressive managed care firms haven’t seen anything yet! I can just see America’s hospital and physician and pharma execs waiting for their turn in the "seven-by-ten-foot blue roomlet–one fluorescent light, one table, one photo of Mr. Sam. So, says the buyer in his unfailingly polite manner, how can your company help Wal-Mart?"