One nice thing about Costco vs WalMart is the lack of an eighteen year old pimple face expert sales "associate" armed with a cheese grater 100 amp load tester who is convinced despite your battery's dead cell his fifty dollar cheese grater load tester says the battery is fine. (Same with Wal Mart tires).
Even Wal Mart microwave ovens synchronize platter index return to 30 second intervals. A PITA for coffee mug handle orientation. A Walmart toaster pops toast one inch below the slot. It's really a hoot the Chinese junk they hawk.
And beware newest Wal Mart car batteries. If the case looks different avoid it. They are buying from someone else than Mexico LTH battery and that vendor is so bad the Mexicans sneer at it.