You looked at medallion costs lately? Training for truck drivers? What happens to your insurance when one of your delivery drivers gets a ticket? There’s a whole bunch of problems it can solve.
Interesting. I just took a look. In NYC, at least, the cost of a medallion has crashed due to competition from Über and Lyft, which are merely taxicabs operating on newer technology. Looks like a good opportunity for the city money grabbers.
That's not what we're dealing with here in the broader "self-driving car" market. I've said for years that one of the biggest flaws in the market is that there simply aren't enough customers out there who are willing to pay a premium for a car that drives itself. It's really a narrow market of people who are incapable of driving (elderly, disabled, etc.) and those who regularly commute very long distances.
As these vehicles get more advanced and interconnected (i.e., they "talk" to each other instead of just detecting and avoiding each other), they start to look and function more and more like mass transit systems.