I think the main reason Uber &quot;won&quot; is because starting off with the black cars was a much more effective launch approach. As everyone knows, 2 sided marketplaces are very difficult to build. Uber solved this by stocking one side with a pre-existing, semi-organized group of providers. After hooking all the riders, UberX became much easier.<p>Coupled with Uber&#x27;s more aggressive practices.