The reason AmazonBasic's offerings tend to dominate their respective markets isn't because they are the cheapest option. They dominate because they are the cheapest option which you can trust to work and continue working for whatever is considered a reasonable lifespan for that category of good.
You're right in that people care about quality, it's just that quality products don't have to cost as much as you think they do.
AmazonBasics provides a nice counter-balance to all the garbage that's currently being sold on Amazon and propped up by fake reviews. They're offering a solid no-frills product at a good price.
got a camera stand. averageish quality at discount price, and I think that's a very good formula, perfect fit for an online seller. not to shoddy to get a bad name, good enough for what it does and priced among the cheapo option of which is the better.
You're right in that people care about quality, it's just that quality products don't have to cost as much as you think they do.