You misunderstand the physical car market metaphor - the high quality cars are not sold faster. They are taken off the market and not sold at all, because the m

You misunderstand the physical car market metaphor - the high quality cars are not sold faster. They are taken off the market and not sold at all, because the market price is too low. The market price is too low because the buyers can't tell good from bad, so they just guess they will get average quality, and just pay what the average is worth. They don't pay for the high-quality used cars - even if they did, it would usually be for the wrong cars.