Honny,
My long-time housemate and I let our shared Costco membership lapse because we found that Aldi and Amazon could save us a LOT more on what we bought in bulk there. (Well, except tires.) Paper products, OTC meds, chocolate, cookies, cheese, , snacks, coffee, pasta products, several sorts of canned goods (mushrooms, tomato products, soups) etc. In addition, by waiting for good sales at Giant, we can each buy and freeze meats and seafood items, frozen veggies,for less per serving, without buying in such bulk. That conserves freezer space for more bargains in small quantities. There are a few Kirkland products for which I did not find good substitutes, but I found that I can order all of those through Amazon at prices only slightly higher than I would pay as a Costco member. You may find that you can forego a new BJ's membership. I know that you excel at research and a little of that pays big dividends
Based in MD, near DC
Shopping from the Carolinas to New York
Have video cam; will travel
Poor customer service? Don't get mad; get video.