What you mean it is not fair? Imagine you are huge company that will not fail, you can enter any market, dump the prices, gather market share, make that the main stream of revenue, and suddenly you can click to kill someone whole business. This is a vendor lock-in based on a dumping model.

On the other hand, don't tell that prices are not personalised anywhere. 4 is destroying the economy with gray area tactics Anyone working there should be ashamed of being part of that