It's not sustainable. Uber is trying to drive competition out of business, so it then has monopoly pricing and can charge what it wants. We've seen a preview of

It's not sustainable. Uber is trying to drive competition out of business, so it then has monopoly pricing and can charge what it wants. We've seen a preview of this in China; the day Uber and Didi signed their agreement fares went significantly up because both companies dropped all their promotional discounts.