Various Musiche Per Commento value

I need more information to give you a proper valuation. The catalog results show two entries for "Musiche Per Commento," but one is priced at "$999 used" and the other is unpriced.

To give you the best advice, could you tell me which specific version you are interested in? For example, is it a specific pressing, a particular condition, or are you looking to compare the two?