I always liked Costco better than Sam's. I quit shopping at Wal-Mart/Sam's when they ousted Maurice Bessinger for having the Battle Flag on his BBQ sauce. The letter I got said it was "not reflective of their values", but they continue to buy supplies from the red chinese.
I can't support Costco with it's left leaning executives. I don't like Target either. I'll just have to order all my stuff from the local feed store!