Everything has its application. I went with Walmart batteries as pix I took at Costco looking identical down to number style. Looks like just a diff sticker.
That said we really do not dry camp often, we may overnight in cooler weather. Battery load not much of issue. I did install inverter to allow tv/bluray/video games when underway without gen. Batteries were original dated 2015. I used to test by running inverter unplugged from shore power and count hours till indicator dropped from 4 to 3. Early on was 4 hours, past couple years was closer to 3 hours. Now using old RV batts in boat.
We dry camped at Walmart in Alabama last yead and had no issues.
I understand the most expensive options are a big advance in capacity. Some people will benefit as long as management system can handle.
Unless we see a change in our application, the old less tech method works fine.
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