You compare two different types of monopoly. It may be true that Uber will "monopolize" the market regarding the amount of suppliers, but: You always can use po

You compare two different types of monopoly. It may be true that Uber will "monopolize" the market regarding the amount of suppliers, but: You always can use potential future alternatives. Those small taxi organisations who are defending their market share in Germany right now do that not by better service or lower prices but by lobbying through their state protected cartells. This causes German taxis to be awful. Often they want to talk to you, are dirty, expensive and play poor people pop on interrupting volume.