Membership with Costco or Sam's club? Hi Ladies, I hear from lots of people that though Wal-Mart claims "Always low prices", it is even better to buy regular items especially consumables in bulk from stores like Sam's club, Costco, etc. However, both these stores insist on annual membership with them. I'm sure many of you here have membership with either of these stores. Please can you all throw some light on the following comparing Sam's & Costco: - advantages/disadvantages about going for membership with them - which are the products that are worth going in for membership - Are the item prices still low even on considering the membership cost? - finally, which one is best? Thanks in advance for your valuable thoughts that will help me decide the best!