[Query] Was Sanskrit ever spoken by "all"?

[thion at msh-paris.fr]

A (At) 7:23 22/02/1996, Richard Salomon ecrivait (wrote):
>I have discussed this subject, or at least some issues related to it, in an
>article entitled "On
>drawing socio-linguistic distinctions in Old Indo-Aryan: The Question of
>K.satriya Sanskrit and related problems," in the just-published book The
>Indo-Aryans of Ancient South Asia: Language, Material Culture and
>Ethnicity, ed. George Erdosy (Berlin/NY: de Gruyteer, 1995),  293-306.

Very interesting indeed, especially when your bookseller reports the book
costs 200 (two hundred) dollars.  How is it possible? Are we cows to be
milked? By whom?
st