I think it is a water of money. Costco and other warehouse clubs have one thing in common: you need a membership to shop there. In fact, the membership fees is one of the primary profit drivers for Costco (with hundreds of thousands of members, that translates into millions of dollars of profit).
There are several ways to look at a membership. If you run the numbers, you will see that all you need to do is save $5 a month by shopping at Costco to pay off the membership fee. But the savings can go far beyond that – provided you don’t change your shopping habits too much and spend more than you otherwise might. Obviously that fee would be a total waste of money if you never or rarely went to the place. True, you can come out ahead in just a single shopping trip and buy enough stuff that is at least $60 dollars cheaper than had you bought the items somewhere else. lf not, there’s no point. It would be the same as eager work-outers optimistically signing up for a health club in January, then going once or twice but never again. Happens all the time.