I really wonder where Uber, Lyft etc. go in the future. Uber in particular seemed to betting hard on the fact that self-driving cars would make them wildly profitable but it seems like that is a long way away yet. And they're still subsiding rides in a lot of markets to make them look a lot more affordable than they really are.
I still think there's a market out there, but Uber in particular feels like it's grown too big for the actual market it can hope to occupy.