Is Costco worth it if milk and eggs are my main purchases?

Usually, probably not—if milk and eggs are your main purchases, a Costco membership often only makes sense if you buy enough of other items to offset the membership fee.

Why:

• Costco can have good per-unit prices on milk and eggs, but the membership fee means your savings have to be large enough to cover that cost first.
• On a small basket made mostly of eggs and milk, the savings are often too small to justify the fee unless Costco is clearly cheaper than your nearby grocery options.
• If you already shop at a discount grocer, the gap versus Costco may be small or inconsistent, which makes break-even harder.

Practical way to decide:

1. Check Costco’s current membership price on the official site.
2. Compare the exact milk and egg prices at your local Costco, Aldi/Walmart, and your regular grocery store.
3. Estimate your annual savings from those items only.
4. If annual savings don’t clearly exceed the membership fee, it’s probably not worth it.

Rule of thumb:
If you’re buying only a gallon or two of milk and a few dozen eggs each week, you’ll often do better shopping wherever the cheapest local price is, rather than paying for a membership just for those staples.

Exact prices and package sizes can vary by location and over time, so it’s worth checking current local prices before deciding. If you want, I can help you do a quick break-even estimate using your weekly milk and egg usage and your local prices.