I&#x27;ve never had any of these experiences when riding in cabs. The cars were always ok, the drivers were polite and well spoken, they took direct routes and never demanded cash.<p>I use Uber for one simple reason: It&#x27;s 30% cheaper than a cab. It isn&#x27;t the quality of the cars, the personality of the drivers or the nature of the service. All of those things vary from case to case for every transportation service. Uber&#x27;s only compelling feature is their lower price.<p>From what I understand, the average Uber driver makes very little money, &lt; $9&#x2F;hr after Uber&#x27;s fees and vehicle maintenance costs. And the low customer prices are effectively being subsidized by venture capital money. How long can this last? Could this be another Groupon situation, where the Ponzi scheme doesn&#x27;t fall apart until after Uber&#x27;s IPO?