I am with those who say you got a decent deal. Like stated the stocks are worth $150. You have got a gun you can carry around and not worry about. Keep it clean and give it a wipe down with a slightly oiled rag once in a while and enjoy it.
Unless you own a pawnshop where broke people come in needing money your not going to find many of the earlier model 19s for less money. I go around Montana and always check gun shops and Pawn shops. I own the only model 19 I have found for $500 and it was marked 6