I just watched a story on ABC's 20/20 website about Costco. You can read the story here, or better yet, click on the video link and scroll down the list to the Costco story. There are some things almost renegade about this chain - the average worker makes $17/hour, almost 40% higher than competitor Sam's Club, the CEO is paid a petite $350,000 a year, probably putting him at the lowest rungs of CEO pays. Costco was, get this, the world's largest wine retailer this year! WOW!
It appears that their average customer is much more affluent, a median income of $74,000 a year, if I remember right. That's much higher, I suspect, than Sam's Club, where I am a member. A brief look at the Costco website seems to confirm that suspicion. So in the end, after all the praises of Costco, maybe I still need a Sam's Club to allow me to buy $3 bags of pasta and $9 boca burger cartons.