Dairy prices in 2026 are moving in one direction. The USDA recently revised its forecasts upward for cheese, butter, and milk — predicting increases that make the already-significant price gap between Costco and conventional grocery stores wider, not narrower. Kirkland feta, cream cheese, and butter are half the name-brand price at Costco. Organic eggs at Costco are priced below what most grocery stores charge for conventional eggs from less-verified sources. Dairy is one of