there is, to my mind, a rather great difference between asking for a PDF of an obscure, out of print or difficult to obtain scholarly work (even book), for which, among other things, the author/editor never expected to make a penny,and asking for a scan of a *current*, in print, and not even very expensive (Amazon has new copies for less than $12.00) general book. 

My wife likes to remind me that I am not the policeman of the world, and I am mindful of this (or try to be), and I'm aware that this is, in many respects, "none of my business," and moreover I speak as someone with a 2 TB drive almost completely full of scans of books, articles, manuscripts etc etc., but whenever possible alongside not instead of publications. I am also aware that having a good job my financial situation is not that of everyone, and that's also why I mentioned above the price (fin possible contrast, I suspect--although I have not seen any such thing--that it won't be too long before PDFs of the Oxford Rgveda start to circulate, since the book sells for a price to make even a well paid academic take a deep breath--at the same time, that's the whole RV, and if it were to have been published in parts the sum of those parts would no doubt be greater than the price asked now, so I'm not complaining about the price, only commenting on what I suspect will likely happen... ).

sorry for rambling...