Sam’s Club and I’m pretty sure Costco has similar prices.
I buy a lot of staples at Sam’s Club, spaghetti sauce, pasta, spices and such. I also get some meats there. I probably save more than my membership cost every year, but the downside is that impulse buys are expensive, you must shop with a list.
When my husband was driving 65 miles each way to work, we save two or three times our membership cost on tires alone. The one time we needed new tires and Sam’s Club only had 2, we shopped around at all the tire places in town and it turned out it was less expensive to buy a membership at Costco and get 2 tires, than it would have cost to buy 1 tire elsewhere.