While we should cherish old words and use them, let's not go about with the impression that the English speaking world is going to an illiterate hell just yet. An "extensive vocabulary" is a function of the culture it comes from. Remember that the "average person" of today gaily uses many thousands of words that "a common person of a century ago" did not know, because they did not exist yet. That's what's queer and even revolutionary about our present day, I think. So you don't want a revolution, I'm thinking - you want a counter-revolution (not too serious a one, to be sure!).