They add up. A penny here, a penny there, and soon you're talking something like $0.15/cable. If you sell a million cables, that's $150k. But there's also th

They add up. A penny here, a penny there, and soon you're talking something like $0.15/cable. If you sell a million cables, that's $150k. But there's also the fact that people usually buy stuff based on price. If you go on Amazon, as a consumer, you're likely to buy the $3.99 cable over the $4.99 cable. And with the profit margins necessary that $0.15 cost savings can easily translate to a $1-$1.50 price difference for the end consumer.