The Pentagram is a symbol of a star encased in a circle. Always with 5 points (one pointing upward), each has its own meaning. The upward point of the star is representative of the spirit. The other four points all represent an element; earth, air, fire, and water.
There are two kinds of membership. The Goldstar membership costs $50 per year and you get the privilege of shopping at Costco. The Executive membership costs $100 and you get 2% reward on most purchases in addition. The price of membership is going up in 2012 to $55 and $110, respectively.
Photo, file: Frederic J. Brown/AFP/Getty Images. Costco really has the ideal membership base. The average member is college educated, owns a home and earns about $100,000 a year, CNBC reports. Members are extremely loyal, with an overall renewal rate at 90.6 percent, research firm Trefis reports.