&gt; It&#x27;s sad that TwoBit&#x27;s perfectly reasonable objection to this got downvoted to death rather than countered with some plausible argument.<p>Probably because he needlessly brought a controversial issue into the discussion (prostitution).<p>The taxi issue is, in fact, interesting. Especially when you extend it to Uber. If your capital comes in the form a vehicle, you apparently aren&#x27;t required to pay imputed rent but if it&#x27;s a house you do.<p>That being said, the labor issue muddles this. You could argue that when you get a taxi you&#x27;re paying exclusively for the driver&#x27;s time, not the vehicle.