The higher priced items are the better bet almost always. Why?

Because they almost always advertise what's in 'em. They know their customers are buying the product for the quality and the advertised components. They can also cull out the items that don't meet their QA standards, and throw them into the cheaper brand bins and not lose a penny doing a tighter QA inspection.

And the cheaper brand isn't usually selling anything more than a servo they know half the customers think are the better ones and can buy at a dollar or two less. They're selling most of their stuff without advertising much more than the price.

And the manufacturer also knows if he runs out of the quality components, even the rejects, he can substitute whatever he has that fits into the house brand things. He knows that the people who buy only by price often can't tell the difference anyway.