Food isn't a valid comparison for many reasons. If you buy food from Amazon you'll be fine. And if you go to your local flea market and buy random electronics

Food isn't a valid comparison for many reasons. If you buy food from Amazon you'll be fine. And if you go to your local flea market and buy random electronics you're likely to get just as bad a result as if you do that on Amazon. If you want a curated selection go to a place that curates it.