what do you guys/gals think about this option
costco.interstatebatteries.com
Can have some of the best pricing, but they recently changed their 36 month warranty from replacement to a pro rata basis, which has altered the equation.
It will depend largely on your application, and what options are available in your area, especially if you're picky about the battery's OEM.
As an example, for my typical H6 application:
Standard FLA H6:
Costco - $120 - 36 mo pro rata
Walmart - $160 - 36 mo free replacement
AGM H6:
Costco - $170 - 36 mo pro rata
Walmart - $180 - 48 mo free replacement
First case is a +$40 bet to recover full value if it fails within 3 years, or being happy with half value by not paying that premium. Debatable to pay $40 to recover $60 in value.
Second case isn't much of a debate; only +$10 bucks for a full 4-year warranty vs. a 3-year pro rata, for a premium segment battery that usually carries better terms in the marketplace?
The Costco battery will be from Clarios. The Walmart battery may be made by East Penn, Clarios, Delkor (their former joint venture with GM in Korea), or ATLASBX, depending on the supply chain that serves a particular area.
Weigh your own application/risk/reward accordingly.