It is only true when entry barriers to the market are low. Capitalism will give you a diversity of toasters or beer. Complex tech devices like phones have highe

It is only true when entry barriers to the market are low. Capitalism will give you a diversity of toasters or beer. Complex tech devices like phones have higher barriers, you can't just hack up a phone in a team of 5 people. Besides, economy of scale makes niche products more expensive.