You should read

This

Especially the comments.

Scarcity, or limited supply, along with increased demand
should result in higher profit for the seller.

Those who fail to plan ahead should pay for their lack of forethought. Those who take risks should get a reward when they guess correctly.

No one ever accuses a convenience store owner of "gouging", yet his prices for milk and eggs and such are much higher than the grocery store.

Via insty