They make their profit just as easily when demand is high because that is the market capacity they are aiming for. Your comments are more related to the fact that it isn't so easy to increase production. and at the same time maintain that price point and profit level.
As for the higher price, this is where ebay fits in the picture in providing that price increase with additional middle men... also leads to increased inefficiencies with double shipping, etc... and why in general price controls are not the best practice.








