Since this is an item I get regularly - it’s $9 for a 4-pack of Kerrygold butter at the Mountain View Costco ($2.25/ 8oz bar). Same 8oz butter is almost double at Safeway or Whole Foods. The local Walmart is $2.83 per bar.

I have rarely found Costco items more expensive than other local stores, at least for my regular items.

I discount Trader Joe’s since they don’t carry branded items other than wine and beer.