Costco shoppers say these items basically make a membership pay for itself. We did the math.

Costco offers some impressive prices, but shoppers sometimes balk at the membership fee.

Dominick Reuter/Business Insider

• Costco is known for buying in bulk and offering some of the lowest unit prices among retailers.
• To get its deals, the club charges shoppers an annual membership fee of $65.
• A common question is whether the savings can effectively offset the fee, so we did the math.

Costco is widely known for offering a wide selection of items at relatively low prices...