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.
If you are not a Costco member and would like to join, when you apply for the credit card offer below you can sign up for a Costco Gold Star membership (which is $55 per year by itself, so if you get the card the annual fee covers this annual store membership fee).