It's a scale problem. Walmart or whatever, they buy and sell insane quantities of goods - they make life insanely difficult for vendors and either you're someon

It's a scale problem. Walmart or whatever, they buy and sell insane quantities of goods - they make life insanely difficult for vendors and either you're someone as large as HP, Acer, Asus etc who can get by with margins less than 1% but make up for it in volume, or you can't compete with them at all and stay out of the big box stores for good. That's why anti-trust legislation and enforcement is actually important... to prevent ossification of scale that effectively prohibits new actors from entering the market.