"You will also be able to add your car to the Tesla shared fleet just by tapping a button on the Tesla phone app and have it generate income for you while you're at work or on vacation, significantly offsetting and at times potentially exceeding the monthly loan or lease cost.

This dramatically lowers the true cost of ownership to the point where almost anyone could own a Tesla. Since most cars are only in use by their owner for 5% to 10% of the day, the fundamental economic utility of a true self-driving car is likely to be several times that of a car which is not."

The Tesla Network apparently goes hand-in-hand with full self-driving at some point too. Musk envisions your car being put to use while your at work, or sleeping or doing something else that doesn't require use of your own vehicle.