My experience with anything that Wal-mart sells is that everything is acquired by them purely on profit margin without regard for quality. You may get lucky and find a good deal, or you may be stuck with some inferior goods. (Did you know that Wal-mart is the largest purveyor of Chinese made products in the US?) If you just want cheap, you'll get it. What's the difference in cost between a known quality product like Interstate, vs, the Wal-mart brand that is made by who knows who? If you're slapping a battery into a car for a quick sale, go cheap. IMHO, if you're doing a collector vehicle go with Interstate or, for one that will only be driven occasionally, choose Optima.