What you are seeing with these prices are not typos or corrupt business practices. What you are seeing are the results of algorithyms and algorythmic "bots" that end up clashing and or competing with each other and driving up the price inadvertantly on products. Eventually a human will "intevene" and correct the issue.

The same thing is happening in the financial industry. There are so many automated bots and scrips running amok and no one is sure how they will interact with each other in any given system.