For some reason I find it hard to believe that these billion dollar corporations who decide to invest in autonomous technology will actually lower their prices to ship commerce. Corporate greed is too great to give someone a break and they'll argue inflation, it costs money to operate/maintain such a system and pay whatever third parties that will be involved to keep it operating on a daily basis. There will be very little if any price drop I predict. It is probably cheaper just to pay a person to operate the vehicle rather than maintain the operating systems and infrastructure to keep a system going continuously. The only thing these autonomous systems will do is make the people who provide it rich. That is the ultimate goal. Elon Musk or whoever is not trying to save lives. It will probably harm more lives by putting so many out of work. Not to mention it puts are country at a great disadvantage if there was a war since none of that stuff will work and not enough people will have the operating experience to operate a truck or a train or whatever else they want to automate. It has nothing to do with safety just money. Don't kid yourself.