But is that true for most people who use Uber, or even taxis? I wouldn't be surprised if a large portion of Uber/taxi users were in fact people traveling to a different city.
I would be surprised. At least in New York, people use taxis very often, and thus use Uber very often. I'd wager the vast majority of Uber usage is in people's home towns/cities.
Personally, I use other apps when in NYC, but fall back to Uber when I'm somewhere else and can't find a local app.
This is exactly what got me to use Uber initially. I can show up in San Francisco, or London, or my tiny hometown where cabs take 45 minutes to arrive, and Uber will work the same way for about the same price. Having a robust, universal way of getting places really does matter to a lot of people.
