Circuit City’s downfall was due to a lot more than just a DVD player that didn’t sell well.
They also had famously bad customer service and made a lot of other very strange decisions about what products they would and would not carry.
When BestBuy started to take their market share, they had stores that were notcsurrounded in vultures and they actually sold dishwashers and whatnot.
Circuit City was run by a bunch of people who thought they could punch a penny here and there to optimize revenue, and they optimized themselves into become stores had terrible products and people.