Deep cycle lead acid and AGM batteries also follow the rule "you get what you pay for".
Better brands like Trojan, Deka, Full River, Optima - cost more. No-name black box from Walmart costs less.
Though in the led aicd domain there is a lot of re-branding goes on, sometimes a reputable factory like Johnson Controls makes a big batch to be sold in Sams Club, labeled "Sams Club" at lower price. Deka aka East Penn are sold under a few different labels, too. These things are easy to find out as those are all well known companies, with factories mostly in the US and Mexico. With unknown Chinese suppliers there is no transparency, it's a Wild West out there, going through reputable channels is your only protection. Well, this is your money...