Well, of course there is the "buy cheap, get trash, duh!" talking point. But if I pay more, who's to say I'll get a better product? The OEM or some middleman or whoever might just pocket the difference and push crap anyway. Well-known brands have done this as well, either intentionally or because they got shafted by their supplier as well.
I've definitely realized this in a couple of markets: Buy cheap, get trash. Buy expensive, get expensive trash with better marketing. Working with power tools from various brands has made me realize they all cheap out in the same ways. Plastic gears where there used to be metal, undersized motor drivers that fry themselves under sustained load, trigger switches that start misbehaving or die completely after a few months.
Also, all of the brands (cheap or expensive) will sometimes mess up the cost-cutting and make something reliable by accident. Buying cheap gives me more chances to get lucky in this way.
The other day my bicycle light gave out, so I took it apart - was not the most expensive option, but also not the cheapest.
It was advertised as having a 2600mAh battery, but when I opened it up, inside there was a 1700mAh cell. Also no sign of purported weatherproofing, as the lens was not even glued in.
I have a 2000mAh cell in the same form factor (approximately 500Wh/l, so believable) on its way from China, which makes me wonder how did they come up with that 2600mAh figure.
This has been a problem for a while. It's Akerloff "market for lemons" applied to technology. Sometimes however you gamble and win, discovering that the Chinese device actually is really good for the price. Occasionally even better, when you discover that some anti-feature like DRM is either not implemented or trivially turned off.